5-speed transmission rebuild/overhaul
04-24-2007, 08:56 AM
#1
Kevlo for President
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5-speed transmission rebuild/overhaul
So I bought a manual swap from a 96Maxima with 180k on the odo. He says it drives good but I would like to rebuild it anyways. I plan to replace the bearings, synchros, oil seals, and install the 00-01 altima 5th gear.
I have found this so far, I know I don't need all that but what do you guys recommend to replace? Should I get everything from Nissan? I know there are aftermarket gears and such but I don't think I need all that.
I have found this so far, I know I don't need all that but what do you guys recommend to replace? Should I get everything from Nissan? I know there are aftermarket gears and such but I don't think I need all that.
04-24-2007, 09:08 AM
#2
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input and differential bearing for sure, main shaft bearings if you have a way to measure for the shims. Input shaft seal, axle seals. Just wait on ordering syncros until you can check the ones you have, they might be good, unless you have money to burn and want to replace them anyway. I ordered all my bearings through a bearing house and saved alot compared to the dealership. Shims and seals I got from a discount nissan dealer.
I tried to order everything in advance, but I ended up needing a new input shaft once I got in there and disassembled everything.
I tried to order everything in advance, but I ended up needing a new input shaft once I got in there and disassembled everything.
04-25-2007, 06:04 PM
#8
All the gears are swappable from 4th gen to 5th gen. I don't see any reason to personally. I noticed 3rd gear on the 5th gen has a slightly bigger oil channel cut into the thrust surface of it. Not something I'd spend money for.
04-25-2007, 06:06 PM
#10
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Originally Posted by Nealoc187
All the gears are swappable from 4th gen to 5th gen. I don't see any reason to personally. I noticed 3rd gear on the 5th gen has a slightly bigger oil channel cut into the thrust surface of it. Not something I'd spend money for.
04-25-2007, 06:14 PM
#11
Originally Posted by LA02MAX
But if he's going to be buying it already, the 5th gen set would be better, no? They're probably around the same price...
04-25-2007, 06:20 PM
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Originally Posted by Nealoc187
They are almost exactly the same price, I checked with DaveB on that last year - so if one was going to replace 3rd then yeah I'd get the 5th gen gear on the off chance that it is made of stronger material. I don't see anywhere where it says he's going to be purchasing a 3rd gear set though. Only 5th gear is what I read.
04-25-2007, 10:37 PM
#13
Kevlo for President
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Originally Posted by Nealoc187
BTW when you get in there you are probably going to fist the 1st/2nd and 3rd/4th sleeves are all banged up unless your car has been babied on almost every shift and never shifted hard.
Dunno about the history of the car so I will expect the worst.
32606-03E10
32606-77E15
Are those the 2 sleeves?
04-27-2007, 08:38 AM
#15
Kevlo for President
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From what i've researched, that ebay kit and many other kits use the same bearings as Nissan and there might be ONE bearing that is different but it will still be high quality. I will see if they have any kits for 97+ because i've read they have different/better synchros.
That's a perfectly acceptable kit. Transparts is a reputable aftermarket rebuilt part supplier. The price is pretty good.
I have a couple of questions about the details of that kit. 1) the photo is for an LSD kit because it has the monster driver side diff bearing, but the item desc is for the non-LSD tranny 2) the application dates (91-96?) don't make sense to me. I know that the synchros changed a little in 96, but I'm not sure that the 3rd gens are absolutely identical in bearings, synchros, and seals. I would expect it to be more like 94-96. Just make sure that you get the correct kit.
While I haven't bought a Transparts kit before to confirm this, every rebuild kit I've seen thus far, including parts from Nissan, are made with the same brands of bearings. The only difference I've seen is that my kit supplier uses an SKF for the mainshaft bearing instead of a Koyo, and both are high quality brands. The diff bearings, for example, are ALWAYS made by NTN since these are a special size. The seals you get might be a little more generic, but since 99% of all sealing problems come from the seal installation or bearing play, I don't believe quality is an issue.
Not sure if it's worth buying the synchros. Usually the synchros aren't too bad, and if they are then replacing them doesn't fully solve the problem anyway due to damage of the hard parts.
Really, the biggest factors in a good tranny rebuild is the condition of the original hard parts, the cleanliness and installation techniques, and proper measurement for the shims. The last two are not easy to achieve as a DIYer.
David
I have a couple of questions about the details of that kit. 1) the photo is for an LSD kit because it has the monster driver side diff bearing, but the item desc is for the non-LSD tranny 2) the application dates (91-96?) don't make sense to me. I know that the synchros changed a little in 96, but I'm not sure that the 3rd gens are absolutely identical in bearings, synchros, and seals. I would expect it to be more like 94-96. Just make sure that you get the correct kit.
While I haven't bought a Transparts kit before to confirm this, every rebuild kit I've seen thus far, including parts from Nissan, are made with the same brands of bearings. The only difference I've seen is that my kit supplier uses an SKF for the mainshaft bearing instead of a Koyo, and both are high quality brands. The diff bearings, for example, are ALWAYS made by NTN since these are a special size. The seals you get might be a little more generic, but since 99% of all sealing problems come from the seal installation or bearing play, I don't believe quality is an issue.
Not sure if it's worth buying the synchros. Usually the synchros aren't too bad, and if they are then replacing them doesn't fully solve the problem anyway due to damage of the hard parts.
Really, the biggest factors in a good tranny rebuild is the condition of the original hard parts, the cleanliness and installation techniques, and proper measurement for the shims. The last two are not easy to achieve as a DIYer.
David
07-03-2012, 09:07 PM
#18
could be very excessive engine movement caused by really bad motor mounts, worn coupler(s) (also known as sleeves), worn engagement teeth on the gear(s) in question, or a combination of all of the above.
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