: Gearing write up - Anyone got one?


GloNDark
11-07-2001, 11:39 AM
Anybody out there have a write up on how to swap the ring and pinion in a FJ-40? I am specifically looking for information regarding bearing preload, crush washer (Does a 69 FJ-40 even have one??:confused:), backlash....You know the typical questions.

Also, if switching to a FJ-60 style gear set (Fine spline) does that require the addition of a crush sleeve?

Someone out there has to have this information. :D:D:D

Thank in advance!

Chris

John Smith
11-07-2001, 01:34 PM
Chris, Check out this Web site. http://www.ring-pinion.com/t-installation.html

They have some pretty good info on how to setup gears. I would use a spacer and shims as opposed to a crush sleeve. Buy all of the different size shims from Toyota and return the ones you don't use.

Medusa
11-07-2001, 02:21 PM
The Land Cruiser Body and Chassis Repair Manual has a pretty good section on setting up R&P gears for the LC carrier.

fj40m4
11-07-2001, 02:22 PM
buy a toyota factory manual if you do not already have one, all you need is the chasey manual, $ 30.00, ( unless you have a the six still), it has all the torc specs, along with real pictures of disasemble and reasemble of the diffs.
check one out it is the best book I ever bought for a Land Cruiser!

Pin Head
11-07-2001, 05:18 PM
The Randy's R&P and the Toyota manual both have good descriptions of how to set up your R&P. The hard part is setting the pinion depth. Start with the original washer, since that may be close. If the tooth contact isn't correct, then you have to remove the bearing and try a thicker or thinner shim depending on whether it is face or flank contact. It is real handy to have the complete set of both pinion depth and pinion preload washers that Toyota sells and just return the ones you don't need for a refund. They are a couple of bucks each and there are something like 16 total. The "shims" that come with the bearing kits are only for compensating for changes in the pinion depth washer thickness and not for setting the preload. Once the pinion depth is fine, then find the pinion preload washer that gives you the correct value. Then adjust the backlash and lastly add carrier preload to the correct value.