Clearance with dry vs wet clutches

As for the original topic of this thread, it sounds like a hydraulic problem, and I would be looking closely for cross leaks in the forward clutch circuit. This will include the valve body (also verify manual valve position), and the stator support that is bolted to the pump.

As for my video that was posted above addressing the inherent play in the input assembly on all 727, 518, 618, 46, 47 and 48RE until model year 2007.5, the general rule of thumb with the later 1/2 moon style Belleville spring, is an .875" tall piston for the 727, 518, 618, 46 and 47 forward clutch drum, and the .850" tall piston for the 48RE (hemi style) forward clutch drum retainer. The best way to do it, and for a perfect fit, is to start with a .900" tall forward apply piston and cut it to your desired height in a lathe.

On the Belleville spring, they went back to the early spring in the overdrive units, and I have an updated video that talks about that as well. You'll want to use a new Chrysler spring or a used Chrysler spring in good condition. The aftermarket Bellveille springs I've used in the past have all flattened.

Thanks for reading,

Chris Andrews
Andrews Racing Transmissions
720-939-0183
andrewsracingtrans.com
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