Aisin Warner Shift Kit,
9/8/2009

Transtar Part Number: T89165C

This Shift Kit for the AW55-50SN reduces and prevents delay/bang drive engagement, 4-3 and 2-3 coast clunk, 2-3 and 3-4 cut loose, and TCC slip. Allows the builder to take apart and clean the linear solenoids.



Is this what you purchased?

 

http://www.valvebodyxpress.com/products.php?theId=10 This website is amazing and they even offer a new valvebody reworked with Sonnax shift kit installed along with other adjustments needed for the valvebody.

 

athlon, after your cars warmed up do you still notice some shift shock from park to drive? well actually let me start off... did you have a shift shock originally from
Park to Drive? did the kit fix it? how long did the shop have your car for?

also i'm trying to clarify the kit. My kit came with instructions and about 4-8 tools. No gaskets or anything else. Pretty much the kit was the size of a sandwich and came with acouple of tools...


do you notice your problems are completely gone?

 

2nd UPDATE: My car has been in the shop for a week - labor to install the shift kit is $400. My issue now is that the gasket was damaged when opening the VB and now I have to buy a $300 kit because it isn't sold separately. I'm pissed but what can I do? With the fluid being $15 a quart (need 12 quarts), plus the new filter, I'm at about $900 for the repair.

 

Damn, that sucks! I'd raise a big stink about them busting the gasket. It was their fault!

 

that does suck man... sorry to hear... unfortunately i think your stuck because it even says when doing it the chances are pretty good that you'll damage the gasket upon installing

 

wow I wonder if a Valve Body Gasket is something we should have in hand when taking the car in? Is it $300 at Autozone?

 

i found this site: says it's $30 for a gasket:

https://www.wittrans.com/Parts-Finde...Term=AW55-50SN

 

do us all a favor and find out the part number and exactly what gasket they are replacing so we know and maybe able to help you or help other members get it cheaper online before going through this horrible misfortune

 

Yes. That's what I purchased. It also came with an instruction manual.

 

The kit fixed my problem of shift shock from Park to Drive. Pretty much all my problems are gone but I do get an occasional jerk, but that's do to my motor mounts an transmission mounts that are bad. I had my oil change 2 days ago, and asked my tech about my mounts. He showed me the front and rear motor mounts that had a lovely circular crack all the way around and also pointed out that the transmission mount wasn't in the best of shape. This problem we're having may actually be two parts if ones mounts are bad. The transmission shifts beautifully but only jerks rarely when I happen to go over bumpy roads that may have noticeable dips in them. The car handles like a dream on smooth roads which leads me to believe that the motor mounts are the cause of these rare jerks right now due to the movement of the motor and not the transmission as that part was corrected by the Transgo kit. I plan on getting the mounts replaced when I get some more funds. That's the same kit I have. Here are the pics. In short, if you're motor mounts are good, this kit will fix your shifting problems. The shop had my car for 3 days. In terms of the gasket, I told the shop beforehand to be very careful about it and that it was expensive. Luckily for me, they didn't tear it.

 

Pics not working but I have also heard that mount failure may be linked to tranny failure.

 

true. but if he got the fix and then fixed his mounts and he's been find... this could be a real fix... if it's fixed and then his mounts break again..well then its a HORRIBLE TRANNY! LOL

i just dropped my car off with the kit at another local shop. He'll have my car for the weekend. We'll see what happens.

 

I got this maxima used from the north east. The guy who had it before must have been some punk who didn't know how to take care of this ride. The car already had GR2s and some sound system wire left over. The factory bose CD changer wasn't working. The car had a bit of a bad pain job from the rear passenger side from where he must have hit something. I was able to get it for $10K and nurse her back to health since I was familiar with maximas, having owned a 4th gen. I can gather from the condition that it was in that the previous owner probably sped over bad roads instead of driving slowly over them. I attribute the bad motor mounts to that combination.

 

Hey Omega? I have the RE5F22A tranny, will this kit do the trick and how huch should I expect to pay a shop to install? My tranny works quite well 90% of the time but I was thinking this could be a preventive measure to save me a major breakdown. I am going to have my wheels road force balanced tomorrow and the tech is going to inspect my mounts.... just FYI. Thank You for any advice.

 

Just got back from the dealership today, my Max is a 2004 SE with 108900 miles. I absolutely love this car, but wasn't aware of the tranny problems until after I had bought it. I also have the same trouble, jerking from R to D and downshift jerk. The tech told me my tranny was going bad, I also have two cracked motor mounts. The motor mounts are the least of my worries, as the quote for the tranny repair was over 4K! It is, well, not funny since it is so expensive, but is quite interesting that so many Max owners have compalined of the same problems. So, the shift kit fixed your R to D shift delay and most of the downshift jerks? Is that still the case, or have the problems come back? I 'm like most everyone else, I absolutely don't have that kinda funds, I'm still paying for this beautiful beast. Thank you very much.

 

the kit supposely does wonders. exactly as stated... will fix your downshift into lower gears and jerk from park to drive... just waiting on my tranny shop to install the kit... it'll be done monday night. i'm pumped if this fixes the problem

 

As thealliance43 stated, the kit does fix those problems. The install price really depends on where you go. Mine came out to $300 total. The shop charged about $100 for taking of the valve body and putting it back. The transmission guy they sent the valve body to charge about $180. The best thing to do is call around and say you want to have shift kit installed in you valve body. A lot of these shops will readily do it for performance reasons. You may want to say that first just to see if they give you a cheaper price. If you tell them that you're having it installed to fix x number of issues, they'll start talking about rebuilding the valve body or just buying a new one etc.

 

Here's a concept maybe Nissan should man up and fix all the transmission problems instead of everyone trying to fix there own issues with your own money since Nissan created this problem in the first place with a faulty tranny. They wont admit there is a problem right???

 

Ok I have a 2006 maxima se, 108,000 miles on it. Im experiencing transmission issues but not all the issues that everyone else is having. When going from 3rd to 4th gear the gear slips. When the car is cold, when going into fourth gear it will slip, catch, slip again, then it will catch. I know this car is know for valve body issues but when i took it to a local transmission shop the tecnician told me though the car has known valve body issues he doesnt think its the valve body, he thinks its just wear and tear and the 4th gear needs to be replaced. He also put it on the computer and he got a code saying converter inefficiency meaning the tcc was slipping. Do i need a new valve body, or a rebuild of the transmission? The car goes from park to drive, and reverse to drive with no hesitation, and the transmission doesnt jerk or slip until it reaches fourth gear (tested this in manual shift mode just to see if any other gears slipped or jerked). it goes into 5th gear with no problems. Just confused on whether to get the shift kit, or the rebuild done. Had the car for 3 years now fully paid off. Transmission issues started about a year ago. Recently getting worse. any suggestions?

 

just touched base with my installer... he's waiting on the gaskets to come in. they got messed up but isn't charging me anything extra for them. Told me it'll be ready tomorrow afternoon. I'll touch base with you guys as soon as I get my car back tomorrow and let everyone know if it's truely worth it or not.

 

Hey Guys, I haven’t posted in a while. I still have my problem of “loosing” power in 4th gear when in “manual” mode. Which I posted in an old thread: “Why Car Chokes”. Now You guys have me wondering if it’s not related to this whole issue. Just to re-iterate the problem I’m having, when I’m accelerating through 4th at around 4 thousand rpm, the revs drop back down to 3 thousand. Then, they keep going up but with a lot less of the power. Does this sound familiar to anyone? Has anyone noticed this problem before the fix? I test drove a ’06 with the same 5AT and the drop was minimal compared to mine.

 

not too sure... maybe someone else could be of assistance. My guess is your valve body is shot. Pretty much if you ignore any of these tranny issues for a decent amount of time your going to pay the price.


UPDATE: just went down to pick my car up and the mechanic told me one of my solenoids were stuck (could've led to the problem) but installed the kit. When he finished putting everything back together the car wasn't going into reverse. He said one of the caps must of fell off during the remounting process. The guy was a straight up nice guy. Gave me a ride back home and will be working on it first thing in the morning. I'm not worried. Hopefully tomorrow i'll be able to update you guys on the kit.

When I was talking to him he said it's not that the tranny goes bad. It's just the Valve Body is build bad. Hence the fix for the kit. He said our tranny's are actually really good and didn't see any problems with it. So hopefully tomorrow will be a better day.

 

good stuff to hear. hopefully the reverse thing gets fixed. keep us posted on your results.

 

So after endless hours of research in trying to figure out what to do. I own a 2004 Nissan Maxima SE (5spd) with about 90,000 miles. So just like everyone else, I've also came across the transmission problem. So at first the car started this jerking motion from Park to any other Gear (Drive, Rear, etc.). So once that started I decided to look into the issue. I called Nissan Corp and just like everyone else they didn't know anything about a transmission issue. Then after about a month the car just completely died on me on the freeway and would never start again. So after endless savings, I finally decided to take my car into the shop. So I was already looking into the worst case scenario that could happen, which was getting a whole new transmission. Today I went to the shop to check out the progress in the vehicle. They fixed the whole start up issue by replacing 2 cam sensors, and not entirely sure how but it fixed the jerk from Park to whatever gear. However, yes there's still this VERY SLIGHT shifting problem from 1st to 2nd gear, and so on and so on. I've looked on this forum about the control valve body and the transgo shift kit. However I don't have the slightest clue what to do next. If anyone has any ideas, please let me know.

 

So it sounds like you fixed the sudden shutoff while driving issue by replacing the CPS (Camshaft Position Sensors). Now you still have the shifting issue. If you have a 5 speed then you want the kit that is talked about in this thread. I recommend you grab a beverage of choice and start from the beginning of this thread and read through to get an idea of what guys are doing and where they are getting their parts from. Any questions after you are done reading just ask hopefully it is more specific in nature and not general, meaning what we all are experiencing. Ohh and welcome to the ORG.

 

I've already read this thread over and over. And from what I've read, everyone speaks about the transgo shift kit (AW55-50SN), so I ended up calling transgo and of course just like everyone said they don't sell the part unless your a shop. However, I can't remember who I was talking to over the phone about the transgo part, by the way the place I called was natpro in los angeles, anyways the natpro salesperson told me just to buy a brand new control valve body, because the shift kit is pretty much worthless. My question is, was everyone told the same about the shift kits.

 

if you want the kit. i can buy them for you. theres a place about 20-30 mins away from me that sells them. just throw me $150 plus gas lol. i'm not gunna do it for long caz it'll get anoying driving back and forth everyday but if ppl want to start up a group buy or something I don't mine getting ppl the kits. My car is still in the shop and just called. They said they're working with transgo tec. to get everything done right.

 

mechanic f*cked up my kit and says i need a new valve body and will install it for free if i buy it. I spent $400 so far getting the kit installed. Now what $800? on a VB>? pist off

 

He is obligated to fix what he F'd up. If the car is not in drivable condition I recommend contacting your insurance agent and maybe even a lawyer to see what they recommend. You more and likely will have to shell out for a new valvebody and then take him to Small Claims court. Start communicating through paper documents so you have record. Keep all reciepts and get witness statements. Get prepared not pissed. Anger clouds alot of reality so keep focused on getting your money without blowing your top. Also file a complaint through the BBB. They will help in situations like this. Man that sux. I found a company that installs this kit and rebuilds valve bodies. Here is their website. http://www.valvebodyxpress.com/index.php Give them a call might be worth it. They might even install the kit for you there. You still have the reamer kit and the part needed. Send them the kit and get them to install it. Ohh about the guy ripping you off, you said he called customer support at Transgo right. See if you can get a written statement from Transgo about questions and what not from them. Good luck and if you need any help from us, ie looking for a valvebody or legal rights, ect. let us know. You would be surprised at what some of us do for a living and every little bit of help is good.

 

So does the transgo kit actually fix the tranny problems? Still waiting on a little more feedback before I jump the gun.

 

if installed right yes... i ended up having to get a new valvebody because the kit wasn't installed right

 

If you are experiencing shift "shock", "slipping", "banging", or any other abnormal shifting with your Nissan, then you are in luck. There is a shift kit out made by Transgo that eliminates these problems when installed correctly. The part number is SK AW55-50SN. You can purchase this item from your local transmission shop or you can get it through some of the places listed below. It is highly recommended that you have this kit professionally installed and not attempt to install this unless you are extremely mechanically inclined. Improper installation will result in a broken valvebody which can cost up to $1500 to replace. Any questions or information needed on this can be found here on the forum under RE5F22A TRANSMISSION FIX.


Where to purchase:

EBAY: http://stores.ebay.com/CT-POWERTRAIN-PRODUCTS

*search for "SK AW55-50", if you don't find it contact seller, they have it. They ship world wide, cost is about $125 shipping included to US. Their customer service is outstanding, with replies to inquiries within about 24 hours. They accept just about every type of payment as well.

Transtar Industries: http://www.transtar1.com - Part Number: T89165C
Contact: http://www.transtar1.com/contact
*cost around $120, not including shipping. call for shipping quote.

Transgo Distributors: http://www.transgo.com/distributorlink.html

*Getting a hold of one of these places is nearly impossible. If you live near one of them, getting a product from them should be a lot easier.

Sonnax: http://www.sonnax.com/parts/3527

*I recommend that you get this part through www.transmissionpartsusa.com
With this kit you have to buy the reaming tool separately. Cost of item is $80 for part, around $250 for reamer. Expensive but as a last resort, worth it.


With this kit install you are going to need valve-body gaskets. So far we have only been able to find one vendor.

WIT "Whatever It Takes": https://www.wittrans.com/ Search for Product: 21320AK

*cost $30.29 without shipping


If you are looking to get a new valve body, I recommend getting one from these guys at ValvebodyXpress. Here is a link to their products.

http://www.valvebodyxpress.com/products.php?theId=10

If you want to send your valve body in for an upgrade in performance then Level 10 is your place. Here is a post from Chernmax about his valve body experience with Level 10.

Current info:
Rebuild Link: http://www.levelten.com/SearchResults.asp?Cat=46

Cost for shipping with $700.00 Insurance: $27.00
(I live in MD and Level 10 is in NJ which is pretty close)

Cost for rebuild and shipping back: $620.34
(awesome return packing!!!)

Any other inputs on this sticky please pm NismoMax80.

 

please sticky this or if you guys have inputs prior to sticky please post I will edit and add them. I used the color scheme to be easy on the eyes and easy to pick out important links/data. All inputs are appreciated.

 

Another vendor of valve bodies is:
http://www.valvebodybuilders.com/nis...aw55_50sn.html

 

I can add some small troubleshooting tips if you'd like? I just really don't want people going out and spending a lot of money doing this if they aren't at least 98% sure it will help. I replaced 2 of 4 tranny mounts, a CSP sensor, and all the Valve body interior components, which cost quite a bit of cash. I did not install the shift kit because at the time it was not available. Now I have to drop another 5-600 on the shift kit. With the amount I spent I could have bought a new valve body. Not trying to complain, just want others to learn from my money pit experience. I would visually check the motor mounts, if bad, replace. I recommend installing the poly inserts. Then get the shift kit if still experiencing shift shock. The motor mounts will only mask the problem and eventually you will have to replace them again, or might have the trans just break on you.

 

Why are so many of these transmission shops against this kit? I got one that refused to install the kit and another that pretty much told me that he was not going to install the kit becuase it would not solve my problem. I finally found one who was willing to install the kit for $450 (including the cost of the kit.) but also told me that he cannot guarantee it would fix the problem.

My mind is made up already though I am going to get the kit installed. But just wanted to see if any of those people on this thread who said they were going to install the kit actually get the kit installed. I remember reading one that said the kit did fix the problem but what about others?

 

no one has said the kit didn't fix the problem. That was a confusion of what I said about having all my internals in the valve body replaced which didn't fix the issue. I did not get the kit installed yet. I have one on the way and already have the gaskets which by the way was a great find and the right part. I should have this thing installed early next week with a one day turn around. The shop I am having it done by are the best on the island and highly recommend transgo shift kits. The guy I talked to didn't know it existed until I told him and had mentioned he did a couple sonnax kits which is basically the same kit. I believe athlon omega is the only one to have this installed with success. The alliance 43 is the only one so far who has had an issue with the install. I will make sure that the shop doing mine writes down that the transmission is in working condition through all gears prior to working on it so I don't have the same thing happen to me as alliance did. I would do a before and after in D to show the difference but I am scared it will break on me if I do. I don't use D for that reason. I use tiptronic and shift manually everywhere.

 

Any particular reason they highly recommend transgo over sonnax kit?

 

They don't recommend one over the other, they just are used to using B&M and Sonnax kits. Sometimes they use Transgo kits, which they said are great products as well.