It was a beautiful evening to go for a cruise in the old car

[mgross0]

The A727 has a weak reverse servo piston, which can break apart. The band may also be out of whack, but I don't think that could prevent you from selecting the reverse gear, it just wouldn't engage. I think you can pressure test it with the tranny installed to check the servo, and that is probably on the Allpar.com site.

[WISCOJIM]

Originally Posted by mgross0

The A727 has a weak reverse servo piston, which can break apart. The band may also be out of whack, but I don't think that could prevent you from selecting the reverse gear, it just wouldn't engage. I think you can pressure test it with the tranny installed to check the servo, and that is probably on the Allpar.com site.

It's got an A904 transmission paired to the original 273 V-8.

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