ZF transmission torque specs.
Thread Starter
Intermediate
Joined: Nov 2020
Posts: 45
Likes: 6
ZF transmission torque specs.
Hi, I am going to be replacing my clutch and flywheel soon. Just wondering what the torque specs on the bolts from the C-beam to the transmission, transmission to bellhousing, bellhousing to the engine, pressure plate to flywheel, and flywheel to crankshaft would be. I can't seem to get a definite answer anywhere. Car is a 1992. Thanks for any help!
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Contact Bill at ZR51 ZF Doc. He will email a step by step on installation and all torque spec”s. If you need a new pressure plate you definitely need to visit with him as he modified the pressure plate so you do not have premature failure, Due to the pressure plate not being machined correctly.
Thanks Hawkeye56
Thanks Hawkeye56
Le Mans Master
Joined: Aug 2015
Posts: 6,090
Likes: 1,972
From: St. Charles MO
1989-1996 CORVETTE 6-SPEED MANUAL TRANSMISSION CLUTCH REPLACEMENT TORQUE VALUES
The following torque values are taken from the 1996 GM “Y” Platform Service Manual:
The following torque values are taken from the 1996 GM “Y” Platform Service Manual:
- FLYWHEEL BOLTS: 74 FT-LBS
- CLUTCH PRESSURE PLATE TO FLYWHEEL BOLTS: 30 FT-LBS
- BALL PIVOT STUD: 33 FT-LBS. 12MM INTERNAL HEX
- LOCKING SCREW FOR PIVOT STUD: 11 FT-LBS. 6MM INTERNAL HEX
- FLYWHEEL HOUSING TO ENGINE BLOCK BOLTS: 37 FT-LBS
- TRANSMISSION TO FLYWHEEL HOUSING BOLTS: 37 FT-LBS
- DRIVELINE SUPPORT TO TRANSMISSION BOLTS: 37 FT-LBS. 18MM HEX
- DRIVELINE SUPPORT TO DIFFERENTIAL CARRIER: 59 FT-LBS. 21MM HEX
- GEARSHIFT SUPPORT BRACKET: 18 FT-LBS
- PROPELLOR SHAFT RETAINING BOLTS: 18 FT-LBS
- SLAVE CYLINDER NUTS: 18 FT-LBS
Drifting
Joined: Jul 2004
Posts: 1,352
Likes: 289
From: MA
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Drifting
Joined: Jul 2015
Posts: 1,270
Likes: 239
From: Sun City West, AZ
I stand corrected. My mistake, I had it backwards. Sorry about that. Although, the 91-93s call for 60 pounds at the diff. Interesting that the manual calls for 59 for the later models.
Last edited by Nokones; Dec 14, 2020 at 09:03 AM.