1980 differential pinion pre-load?
Thread Starter
Burning Brakes
Joined: Jan 2012
Posts: 943
Likes: 73
1980 differential pinion pre-load?
The pre-load (used, not new) for the 79 is easy to find, but the in. lb. number for the 80 is not so easy. Source show the pre-load for the Dana 44, but not specifically for the Dana in the 80. I don't want to set the wrong pre-load and have it self destruct. Does anybody have the specific number for an 80? The shop manual only has the new setting. I do not have a chassis manual for an 80. 
Thread Starter
Burning Brakes
Joined: Jan 2012
Posts: 943
Likes: 73
Figure 67 101
Using an inch-pound torque wrench as shown ,
the pinion rotating torque should read 15-35 lbs. in.
(1.69-3.95 N·m) with new bearings. To increase the
preload, remove shims, to decrease the preload ,
add shims.
I only installed new seals and want to set the pre-load using the existing bearings/races. That pre-load for the used bearings is not there or in my service manual. The 80 does not use crush washers, it uses shims.
