taonindo

im sure i saw a post on changing the ring and pinion gears but after an hour of searching im just not finding it ... any help?

big gear head

Are you asking about how to set the pinion depth, bearing preload and backlash?

taonindo

yes ...but im sure i saw a post on doing it and would hate to see you repost what has probably been posted several times...im just not finding it, thanks

big gear head

Reading the contact pattern is very important. If you can read the contact pattern then you will know what adjustments need to be made to the pinion depth and backlash. Setting the bearing preload requires a preload gauge, which is just a small beam or dial type torque wrench. Having a good installation kit is also very important. A junk installation kit can make the job harder.

taonindo

do you happen to know what the preload torque should be? thanks

big gear head

About 19 inch pounds for the 7.5 10 bolt.

taonindo

do you mean foot pounds? is there a shim for the ring gear to the carrier. i have the pinion in as far as it can go with out hitting the carrier and no shims on the nonring gear side. this is becomming a nightmare......thanks for any help

big gear head

Bearing prelolad is measured in inch pounds. This is not the same thing as torque on the nut. Bearing preload is the amount of torque required to turn the pinion gear in the bearings.

I believe you have the wrong series differential for the gears that you are trying to install. A 3.23 to 4.10 gear goes on a 3 series differential. A 3.08 to 2.41 gear goes on a 2 series differential. If you are trying to put a 3 series gear on a 2 series differeital then it won't work.

taonindo

ok i understand the preload now thank you.

im going from 3.23 gears to 3.73...i guess i better check things over agian thanks