My second 89 Shortbox project

[SNCTMPL]

Good job so far, if you have any questions don’t hesitate to ask. I just got done setting up a 14 bolt and finishing up an 8.25”. Not an expert by any means but I have set up gears in half a dozen trucks and Jeeps.

 

[Erik the Awful]

Doh! Now that that bearing is on you can't put a shim behind it. My pinion was too shallow, so I had to cut my bearing back off and buy two more bearings. One bearing got emory'd out on the inner race so I could put it on and take it off repeatedly as I measured for the shim. The other was the bearing that got final-installed. The downside is that if your bearings are from different lots they're more likely to have different tolerances.

 

[89GMCJOHN]

Night 2 lol ....have had it in and out probably 4-6 times so far ....I'm at .012 backlash currently so sneaking up on specd .008-.009... tomorrow I should have it dialed in....everyone has said your going to have to put it in and out several times which I'm finding to be true lol....

 

[89GMCJOHN]

Current patterns drive bad on the toe , coast ok .....

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[SNCTMPL]

Here’s a few things to look at.

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[89GMCJOHN]

Very informative ...thanks so much for looking this all up for me .....pictures are worth a thousand words .......simply stated pinion is in too deep ....will adjust accordingly - less shims. I should have it dialed in tomorrow finally. Ive been in and out about 10 times now lol..... An interesting tidbit I have run across in several articles I have read mentions it is better to have your drive side dialed in and your coast side a lil off than vice versa.

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[89GMCJOHN]

Got a good pattern today finally ...pinion way too deep .. needed an .037 under the pinion head....I caved and bought 2 pinion bearings and made a test fit bearing for multiple tries....boy thats no joke cutting through one of those bearings lol.....ran out of time -kids +but confident I will have it buttoned up next session.....thanks for all the help.....few pics with methods and part numbers....1989 2wd pinion bearing p/n in pic ....heated it to 350 degrees in oil and it dropped right on the pinion.....

 

[SNCTMPL]

Glad you got it.