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Old March 27th, 2025, 05:32 AM
BobBray BobBray is offline
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Default Re: Trouble finding clutch parts

I ordered an M-Pact 04528 from Rockauto, and it is the same as the Platinum Drivetrain 04-528 as you can see in the pictures. Member 63gmc4x4 has used the Power Torque (O'Reilly's) 70375-HD1 clutch. It has an 11" flat disc and a diaphragm spring pressure plate. The GMC V-6's all came with 3 lever Borg & Beck style pressure plates which have more clamping force than a diaphragm spring type. The 70375-HD1 is for mid-90's GM pickups. M-Pact sells an 11" 10 spline disc part #383348 that has a flat flywheel surface, I have heard that this disc works on a GMC V-6 and can be used with a 12" pressure plate, but I have not tried it myself. Note that most GMC V-6's came from the factory with 11" clutches but a 12" can be used. Next week I will call M-Pact and see what they have to say.
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