Hello, I own a 2002 6spd Maxima. My transmssion is in need of replacment and I am thinking about upgrading to a 2003 HLSD transmission. What I need to know is, can I just put a 2003 HLSD tranny directly into my car? Or do I need the Half shafts and other gismos n order to make the swap work? Any help is greatly appreciated.


Thanks,

Ethan

 

Whassup hommie? You've come to the right place.



http://forums.maxima.org/showthread.php?t=289792


But I want to know why you didn't come to me first and ask this question. Are you trying to play a part or something?

 

Can you do this also with a 2000 5 speed to an AE LSD tranny? Or am I talking nonsense?

 

from sr20den's thread:

"Yes there is no difference in size between the bearing races of the HLSD vs. the open differential. Everyone is geting it confused with the older transmissions open differential vs. the VLSD which does have a much larger bearing race."

i'm assuming that is pertaining to the non AE vs. AE vlsd

 

What about axles. When I talked to DaveB I asked if possible to swap non lsd auto to lsd auto and he said all I would need would be drivers side axle due to the lsd.

 

MyownNismo,
how much would the upgrade cost??

 

Ethan.... again with the Tranny??? this is the second time! what did you do to it... is it still running? Too bad you can't bring it in to get serviced...

good luck with it, and if you need a hand installing it give me a call, i'll drive down.


-Chris

 

Hi Chris, I beleive the transmission has been making my half shafts break. Both my right and left drive shaft have broken this time in addition to the FR drive shaft breaking in the past. Someone on the org said the transmissions shims may be off causing the problem, my mechanics seems to agree with this theory. So the hell with it, I am beyond up with the vibration so this time I am going all out and replacing EVERYTHING! Why not upgrade to a HLSD while I am at it BTW thanks for offering to help, I appreciate it, however I have no desire to get involved with repairing the car these days. My time can be used in a more constructive fa$$ion


Hi Matt, I attempted to do a search and had no luck I guess I should have IM'd you though. Thanks for the helpfull link, I am going to go read up on it.

 

I really like the sig pic, who's max is that in the back

 

The cost of a tranny and drivers drivers axle and install. I was looking at a used tranny from salvage yard with 31k on it. But I decided to get a BF tranny from NRH trannsmissions. DaveB said that the ECU and TCm wouldn't effect the fact that it would now have a LSD. Sorry emax02 for whoring your post. emax02 if your looking for a tranny try www.car-parts.com the car is a fairly new car so not much will be in salvage yards. good luck finfing one and talk to daveb about the driveaxles.

 

How can you tell if your Maxima has this feature? I have an 03 Maxima SE

 

Check your Vin Plate on the firewall under the hood.

If the tranny code is RS6F51A you do not have HLSD.

If the tranny code is RS6F51H you do have HLSD.

 

ummm.... errr... thats my other 2k2 maxima... you like it?


Well, so much for the simple "tree branch" fix! heh. hopefuly this will be the last of your drive shaft problems. but what i do not understand is, why all of a sudden do you have problems? i mean it was fine up untill last year or so.

also, from wht i have heard/read online, hlsd is not much better then lsd tranny. the hlsd does not reduce torque steer, it gives you worse traction in the snow (go figure), and they may be more pricey/harder to find.

no prob with the help. who are you going to have work on your car? the same guy as the engine? did you get a chance with that intake yet? my car is way to quite.


hey, i bet that i can beat you now!

-Chris

 

Sorry guys ,but what is the HLSD and non HLSD And what dose it do?

 

Here is all the information you could ever want on trannys and clutch's.

http://www.houseofthud.com/differentials.htm

ENJOY!

-CHris

 

Thanks alot, really appreciate the assistance.

 

Well, i just checked and I have the HLSD, but what the heck does it do?

 

Another giveaway that you have it is the drilled metal pedals which you have. HLSD sends torque to the wheel that has better traction which helps you in slippery situations and, when exiting a corner, it will put the power to the wheel bearing the most load.

I'm not sure I agree with it giving worse traction in the snow. That doesn't make any sense.

 

Actually, just because you have drilled metal pedals does not mean you have HLSD. it is a common misconception. nissan first introduced drilled metal pedals in the year 2002, but it did not mean it has HLSD. i have drilled metal pledals, and i do not have HLSD. just an FYI.

and as for the snow, yes, it is true. with the HLSD, the car tends to "plow" through the snow on a turn instead of actually turning normally. you see, it is odd, and if i remember correctly, this is how it works...

on normal trannys, when you take a turn the inside wheel needs to spin slower since it has a tighter turning radius. this is a good thing. it means you have a more stable turn. but, it is bad because if you want to take the turn aggressively, you will have a better chance of slipping due to it not being hlsd.

now if you had a hlsd tranny, the inside wheel will spin at the same speed as the outside one, and in snowy conditions, it is not good. the car will want to go striaght instead of taking the turn.

in most cases, having the normal tranny is best for most drivers. the hlsd is better for those who constatly go fast and like to drag race, and is an overall very aggressive driver. Ethan quallifys for having HLSD.

-CHris

 

Have you ever checked the transaxle code on the firewall to confirm that you don't have HLSD? If you don't have it, I'd be surprised and yours would be the first car I've heard of with the drilled pedals but no HLSD. In the brochure, it's clearly stated that they are bundled together so they might have made a mistake with yours. Check your transaxle code and let us know. I'm curious.

Also I would think the HLSD would help from a stop in the snow. My non-HLSD max had a tendency to veer to the right sometimes when I tried accelerate straight from a dead stop.

 

the dealer looked up my vin in the computer when i bought the car, and it came back as with out HLSD. When nissan first shipped out the first few batches of maxima's, they came to us with out the HLSD, it was not untill later in the production phase was it when they started building it with the hlsd. i think they made the max for 3-4 months before it shipped with hlsd.

as for the snow again, comming from a stop i belive it would help a bit. but turning would still suffer.

-Chris

 

I don't think your conclusion about the HLSD is accurate here. The whole point of a LSD is the fact that it allows a limited amount of slip thus allowing for some nominal difference in speed between the wheels. When you make a turn in the snow with the HLSD, it will not only distribute the power as efficiently as possible, but will also allow for one turn more quickly than the other. Unless both are slipping, you will turn in a more controlled manner.

I think what is important to note here is that the HLSD is prone to being over-powered such that both wheels are slipping and you therefore drift forward. It doesn't take much to do this when in 2nd gear or so. Remember, dynamic tarction is always less than static traction. In a non-HLSD car, over-powering the diff means that one wheel will spin like crazy, but the other will barely turn. In this case, the unpowered wheel has static traction that while not helping propel the car forward, is keeping the car in place. This may help prevent the car from drifting forward as much. What it really comes down to is that the HLSD requires a greater amount of finesse with the throttle so that the HLSD can do the best job possible.

When I still had my Potenzas, it was ridiculous how easily I could break the tires loose in the wet. Once broken loose, no tire is really doing anything useful and I would of course drift forward. I would have to let up on the throttle and wait for the tires to regrip and then reapply the throttle to get any where. While fun at times, it was quite annoying in the snow when I was really trying to get to work in one piece. A high torque engine and crap tires is never a good combination.

 

eh, i was close enough, hlsd is worse in the snow!!! lol.

j/k... i thought i remembered correctly, but apperantly not. i tired my best though... i just forgot the main key points. although i could have sworne i was right... i am going to go do some research!

-CHris

 

Blkmax95c, sorry bud, you're misinformed, the inside and outside tires of ANY car will always be spinning at different speeds during a turn. On an open differential car, under sideload of a turn the inside tires tend to lift off the ground a bit and get signifigantly less traction than the outside tires. What the LSD does is it transfers the torque away from the tire that is slipping and sends it to the tire with traction, that's why it's called a Limited slip differential. Contrary to popular belief the function of this device is NOT so you can make even looking burnout strips or launch at the drag strip. It's to give you more traction during a turn and put the power to the ground on the exit. Cars with LSD can get back on the throttle post-apex in a corner much sooner than open diff cars. LSD's also have NO effect on a car's turning radius. Y2k2Driver is correct in saying that it requires a bit of finesse with the throttle to get the HLSD to do it's job as well as it can. The entire function of the LSD is to provide more even traction in low traction conditions, ie.. hard cornering, wet roads, snow.

 

.... sorry... thought of something else.

Perhaps you were thinking of what's known as a detroit locker. A differential type in some 4x4 trucks and older muscle cars that locks the differential under throttle. In this case, while you're on the gas, the two tires are locked together and forced to spin at the same speed. My brother had one on his truck it helped with off-roading, and it DID affect his turning, if you didn't coast through a turn you would lock up the rear diff and squeal the hell out of the inside tire. I guess that might cause the car to plow a bit, but i never noticed with his 33" tires..

 

So all this pointless arguing aside, is it a direct swap or not? I know SR20DEN opened his tranny and dropped in the HLSD unit. But can you just swap the entire tranny (HLSD and all) for your existing 6sp tranny?

 

No that isnt what i did. Read again (the link) and you'll find that I have already answered your questions.

 

It's pretty sad that some of you think that having the HLSD will make your car perform worse in the snow. I have had mine from day one and it's been through 3 or 4 good snows. I wouldn't have made it home in the last (record) snowfall without it.

 

The only thing that plows is bad tires and poor driving skills. Neither of which I have, therefore your assessment of the HLSD in my car is inaccurate.

 

Ok, well like i stated above, i apologize for giving the wrong information, but i was just re-iterating the information that i was told about a month ago. if this information is incorrect, (which i am assuming it is) please accept my apology.

-Chris