Diff gears question...
Nov 16, 2005 | 07:48 PM
#1
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From: Bakersfield, CA
Diff gears question...
Hey guys... Just won some 5.29's from Mark (formulatoy), but they are for a 4Cyl... Is there any way at least one set would work for my rear diff ('91 V6) since they are the 8" R&P's? Or will I just have to sell these to a person with a need for two sets (or just one)? Thanks! 
Nov 16, 2005 | 08:03 PM
#2
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From: Richland, Washington
I'd lean more towards the side of No. I think the only way you could do it is if you were to switch 3rd's, and even still I dont think that would work. Might be wrong, but I think you can go from a 4 to a 6, but not the other way around 
If you do end up selling them, let me know, I'd be intrested in purchasing them off of you if the price is right.
If you do end up selling them, let me know, I'd be intrested in purchasing them off of you if the price is right.
Nov 16, 2005 | 09:09 PM
#3
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From: Bakersfield, CA
Cool, that's what I was thinking. I probably won't be going to 35's for a while... (if ever) so... You may see them in the classifieds here shortly. If I can't use them at all, then I will be selling them.
Nov 16, 2005 | 09:41 PM
#4
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From: Oregon City, Oregon
There are actually two types of R&P, let's call them "LPH" (Long Pinion Head) and "SPH" (Short Pinion Head).
- '79-'85 rigs have SPH gears and a "thick" inner pinion bearing designed for the 4cyl housing. All aftermarket "4cyl" R&P and inner pinion bearings are identical to these factory parts, that way the same part numbers will fit all '79-'95 four-cylinder rigs.
- '86-'95 four-cylinder and V6 rigs ALL come with LPH gears. However, to use LPH gears in a four-cylinder housing you MUST use the "thin" '86-'95 factory Toyota four-cylinder inner pinion bearing. If you use a "thick" aftermarket bearing (or a factory '79-'85 bearing) the pinion will be too deep into the mesh and won't work.
- SPH gears will fit V6 housings if you add a lot of inner pinion bearing shims. Precision Gear avoids having to use so many shims by offering an aftermarket LPH gearset for V6 housings.
- '79-'85 rigs have SPH gears and a "thick" inner pinion bearing designed for the 4cyl housing. All aftermarket "4cyl" R&P and inner pinion bearings are identical to these factory parts, that way the same part numbers will fit all '79-'95 four-cylinder rigs.
- '86-'95 four-cylinder and V6 rigs ALL come with LPH gears. However, to use LPH gears in a four-cylinder housing you MUST use the "thin" '86-'95 factory Toyota four-cylinder inner pinion bearing. If you use a "thick" aftermarket bearing (or a factory '79-'85 bearing) the pinion will be too deep into the mesh and won't work.
- SPH gears will fit V6 housings if you add a lot of inner pinion bearing shims. Precision Gear avoids having to use so many shims by offering an aftermarket LPH gearset for V6 housings.
Nov 16, 2005 | 11:10 PM
#6
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From: 5th Gen San Diegan, California
As long as they are for the 8" rear diffs, they will work.
Here is a good toyota diff page:
http://home.4x4wire.com/erik/diffs/
Here is a good toyota diff page:
http://home.4x4wire.com/erik/diffs/
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Nov 17, 2005 | 04:18 AM
#8
Keggo---the 4 cyl gear will work just fine in your V6 3rd....use about a .243" pinion shim and you are good to go. I believe there to be no loss in strength either. V6 gears are harder to find and more money. What brand or markings do you have on the ring gear?
Nov 17, 2005 | 03:20 PM
#10
Originally Posted by Keggo
Thanks for all the help guys... The gears are Yukons.
Markings:
Ring: T8-529 304
Pinion: T8-529
Markings:
Ring: T8-529 304
Pinion: T8-529
ZUK
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