I have an M41 J-type ('73) in my amazon. I thought the clutch was slipping, so I did a clutch job. I found to my dismay that there was plenty of meat left on the clutch when I got in there. Changed it anyway, and it still feels like all the power isn't getting to the wheels. It was suggested to me that the overdrive unit may slip in a similar manner. Anyone ever experience this?

Thanks,
Eric
--
'66 122 Coupe 110k & '76 242DL 282k

I hope this did not show up after a switch to a synthetic tranny fluid. Some synthetics are so slippery they do not allow the Sprague Rollers to grip the race and drive the output bell of the OD.

If the above is not applicable, and you are slipping in gears one through 4, and your clutch has proper free play, there are two areas to be concerned with.

The Sprague(One way)clutch, which requires replacement of the Sprague unit.

A hydraulic control problem which varies as to cure whether you have a D or J type OD.

To tell the difference, D has single wire to solenoid on right side of auto, J has 2 wires to solenoid on left side of vehicle.

If only in OD mode, does synthetic fluid use apply? Then the cone clutch or hydraulic controls are at fault. You would have to provide me with more specificc info to have me guide you through the diagnostics.

This should be done offline so as not to waste bandwith on the board with stuff that probably does not apply to the cure.

Duane

The solenoid actuates a hydraulic valve, and there are a couple places where
you can have problems. Your cone clutch could even be worn.
Check with Duane Hoberg, the OD Guru in Kansas City ODGuru@kc.rr.com
He can probably pinpoint the cause immediately.
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma

There is a cone clutch in the overdrive, actuated by a solenoid. Probably the solenoid/actuator is failed. Haven't been in there in a long time, but I believe it can be done from the outside.