GM 4T60 & 4T60E 4TH CLUTCH REPAIR KITS
FEATURING OUR PATENTED "BENT TOOTH" DESIGN ALTO KIT PART NUMBERS: 62758 FOR SINGLE PLATE APPLICATIONS 62758A FOR DUAL PLATE APPLICATIONS (91-92) 62758B FOR DUAL PLATE APPLICATIONS (93-UP) FOR PATENT NUMBER 496789

NOTE: THERE ARE THREE DIFFERENT KITS FOR THE 4T60 & 4T60E TRANSAXLES DEPENDING ON THE MODEL YEAR. THE CORRECT KIT MUST BE USED.

62758 KIT CONTENTS FOR ALL SINGLE PLATE APPLICATIONS

(1) 62736 "BENT TOOTH" FRICTION PLATE (.090")
(2) 62707A SPECIAL UNDERCUT ID STEEL PLATES (.076")

62758A KIT CONTENTS FOR DUAL PLATE APPLICATIONS (91-92)

(2) 62736A "BENT TOOTH" FRICTION PLATES (.070")
(2) 62717A SPECIAL UNDERCUT ID STEEL PLATES (.074")

62758B KIT CONTENTS FOR DUAL PLATE APPLICATIONS (93-UP)

(2) 62736A "BENT TOOTH" FRICTION PLATES (.070")
(2) 62727A SPECIAL UNDERCUT ID STEEL PLATES (.133")
(1) 62707A SPECIAL UNDERCUT ID STEEL PLATE (.076")

The steel plates furnished in the above kits are undercut .040" on the inside diameter to clear the redesigned teeth on the friction plate(s). These special steel plates MUST be installed. Carefully examine the "peened" area of the 4th clutch shaft. It is suggested that you do not reuse a shaft that is worn more than halfway through the tooth contact area. When reusing a worn shaft, lightly wire buff the tooth contact area. The wire buffing will reduce any ridges that might cause the friction plate(s) to catch or stick on the shaft’s splined area during the apply and release. Install the friction and steel plate(s) in the conventional manner.
Please note: The bent teeth of the friction plate(s) should be installed facing the channel plate.

Install the 62758 SINGLE plate kit in the same conventional manner as originally removed. DUAL plate models install in the same conventional manner as originally removed; however, be sure you are installing the correct kit according to the model year and channel plate you are working with. If you have ANY doubts, install the steel and friction plates into the channel plate along with the assembled sprocket support, piston and spring retainer. Bolt the support and channel cover together. Air-check the 4th piston several times. Check the clutch plate clearance which should average between .040" - .054" on dual plate models.

 

 

ŠTEST RESEARCH CENTER, 1995, ALL RIGHTS RESERVED

Instruction Book (TOC)