Need Differential Torque Specs
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Joined: Jan 2006
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Need Differential Torque Specs
hey guys i have been having that all-too-common jumping speedometer problem on my 92 F150. i read a few articles on this site and decided to check my rear diff. sure enough, the side bearings on the diff were toasted. im going to replace them tonight after work but i was wondering if anyone has a torque spec for the differential bearing caps. i cant seem to find them in chiltons or haynes manuals. thanks!
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Joined: Nov 2004
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From: Florida
Welcome to FTE.
# Ring Gear DIAMETER 8.8"
# 10 7/16" X 20 RH THREADED BOLTS
# PINION DIAMETER 1.626" 30 SPLINE
# NO CASE BREAKS
8620 Material Heat-Treated
Assembly Specifications:
# Cover Bolt Ft. Lbs. 28-38
# Pinion Brg. Preload In. Lbs 16-29
# Pinion Brg. Preload In. Lbs 8-14 Used
# Ring Gear Backlash .008-.015
# Ring Gear Bolt to case Ft. Lbs. 70-85
# Side Brg. Caps Ft. Lbs. 70-85
# Ring Gear DIAMETER 8.8"
# 10 7/16" X 20 RH THREADED BOLTS
# PINION DIAMETER 1.626" 30 SPLINE
# NO CASE BREAKS
8620 Material Heat-Treated
Assembly Specifications:
# Cover Bolt Ft. Lbs. 28-38
# Pinion Brg. Preload In. Lbs 16-29
# Pinion Brg. Preload In. Lbs 8-14 Used
# Ring Gear Backlash .008-.015
# Ring Gear Bolt to case Ft. Lbs. 70-85
# Side Brg. Caps Ft. Lbs. 70-85
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New User
Joined: Jan 2006
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hey thanks for the quick reply on those specs. i noticed that there was only one person who posted back saying that they fixed their speedo problem so i will do a follow up as soon as im done and let y'all know if these bearings cured the problem.
