Pinion pre-load, shim, and pinion nut question

[UKTJ]

Yes, 1/4-28 is correct but no reason to purchase them separately if they are hard to find. They usually come with a new strap kit. Any local driveline shop should be able to sell it to you.

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Thanks for the confirmation. But it is a very different world over here, driveline shops just not a thing. Ordered bolts from Amazon, here today or tomorrow.

PS visited BC for first time this summer, beautiful place you live. Daughter loved it so much she is now looking to spend a few years living there once she graduates.

 

[UKTJ]

What are you using to hold the yoke when you are torquing? I had issues using a pipe wrench with the axle out so picked up one of these yoke tools wrenches and a long breaker bar. That allowed me to get it torqued nice and good without it flopping all over the place.

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Bolts arrived and used this, seems to be making a big difference. Thanks for the pointer.

 

[UKTJ]

Don't worry about getting pinion preload to torque spec if you haven't gotten the backlash correct yet.

Just tighten the pinion nut with no shims until you achieve 16-20 inch lbs. Then put backlash in spec and run a pattern. If you already have pinion depth established, then pull the carrier and establish the pinion preload which will eventually require torque spec. But you can get real close before having to torque it to check

Took the shims out from behind the pinion, then tightened until I got above 12 inch ibs of pre-load. Now working fine for checking backlash and have got it to 8 thousandsth, which I believe is nicely in spec. Will be runjing a first pattern tomorrow.

As an aside the yoke is very tight on the new Revolution pinion. Couldn't get it off hitting the back of the pinikn with a punch, I ended up resorting to my clamshell puller to get it off. Sure I saw something similar mentioned by somebody who did a video on regearing using Revolution Gears. Anyone else had similar experience?

 

[hosejockey61]

Took the shims out from behind the pinion, then tightened until I got above 12 inch ibs of pre-load. Now working fine for checking backlash and have got it to 8 thousandsth, which I believe is nicely in spec. Will be runjing a first pattern tomorrow.

Good news

an aside the yoke is very tight on the new Revolution pinion. Couldn't get it off hitting the back of the pinikn with a punch, I ended up resorting to my clamshell puller to get it off. Sure I saw something similar mentioned by somebody who did a video on regearing using Revolution Gears. Anyone else had similar experience?

Get a bigger hammer or hit it harder. The only times I haven't been able to get the yoke off is when the bearing was seized or friction welded to the pinion.

Put the punch end right in the divot at the end of the pinion. Leave a nut on there just a few threads to keep it from falling out.