The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > All 4x4 Tech & Off Roading

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-15-2012, 12:26 AM   #1
peglegs
Registered User
 
peglegs's Avatar
 
Join Date: Jul 2009
Location: grants pass, oregon
Posts: 390
what wrong with this 12 bolt ?

looked @ a 12 bolt 3:73 posi from a 77 1/2 t 4x4 yesterday with new richmond ring & pinion but on the left of the ring gear & right of the posi were round shims? very loose different thickness' & one actually came out broken i passed on it not knowing what was going on here anyone explain this i would like it for the $200 with springs,16" white spokes & 1 excellent tire but dont have the expeience to work the internals thanks
__________________
1990 chevy 4x4 with a 1940 IHC body
peglegs is offline   Reply With Quote
Old 06-15-2012, 02:43 AM   #2
andrewmp6
Registered User
 
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
Re: what wrong with this 12 bolt ?

A diff has to to be shimed in for it to work prefectly,Its not hard to build one if you know what your doing.If you have time you can read this http://www.pirate4x4.com/tech/billavista/Gear_Setup/
andrewmp6 is offline   Reply With Quote
Old 06-15-2012, 08:07 AM   #3
OLDCHEV4X4
Registered User
 
OLDCHEV4X4's Avatar
 
Join Date: Apr 2000
Location: Chester County PA, USA
Posts: 1,228
Re: what wrong with this 12 bolt ?

Sounds like they didn't get the bearing preload tight enough and it kicked a shim out/broke. If it wasnt driven too long that way, everything should be ok. I have come across this before and i reset-up the ring and pinion and everything was fine. Its still driving with no failure.
__________________
72 k/10 short wideside
72 k/5 Blazer
72 K/5 Blazer - obstacle course racer
72 custom/10 8' bed
70 K/5 Blazer
67 C-30 GMC Flat bed
86 GMC K2500 Plow Truck
85 GMC K3500
84 M1008
85 M1008
77 G30 Motor Home
72 Sears 12hp Tractor
Glenmoore, Pennsylvania
OLDCHEV4X4 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:03 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com