Chevrolet 1977 10 Series, Repair Manual, Page: 152 / 468

4B 80
OVERHAUL MANUAL
NOTE:
O R IG IN A L SHIM M U ST BE USED.
ATTEMPS TO INSTALL OTHER THAN ORIGINAL
SHIM WILL DISTURB CRITICAL CLEARNCES AND
MAY RESULT IN DIFFERENTIAL FAILURE. Slight
polishing or scuffing on discs and shims is normal.
10. Remove disc pack from side gear and carefully
lower disc pack assembly into left side ease half. Make sure
car guide clips are in their proper position.
11. Install side gear in left side case half. Rotate gear to
engage spline with splines on discs.
12. Being careful not to dislodge side gear assembly
(hold thumb on inside o f side gear spline), lower the left
hand case assembly onto the right hand case. Index left hand
case so holdes in housing will line up for the governor
assembly and ltaching bracket shafts.
13. Turn entire unit over and install three (3) seres.
14. Lock an axle shaft in a vise in a vertical position.
INstall differential assembly on axle shaft engaging the spline
of the axle with a side gear. R otate unit slowly. A short shaft
held in pinion yoke hole will aid in rotating. The unit should
turn smoothly w ithout binding or locking up.
NOTE:
Differential will lock if turned ra p id ly -5 0
rpm or geater.
15. Install ring gear and side bearings using the
procedure outlined for conventional differentials.
16. Place differential unit in carrier and adjust ring gear
to pinion backlash and gear tooth pattern as outlined in the
convential differential section.
NOTE:
Use standard differential lubricant. DO NOT
use lubricants specifically designed for “limited slip” .