940 rebuild... should I?

So, basically I'd be just replacing the valve body? Do you remember where you bought it? Am I just searching for the valve body part#?

Not sure it actually had a part number, but it is called "Part Throttle Kickdown Kit".
Got it on Pat Blaise Ebay page and it is an add on to your valve body and works for 904 and 727 both.
You take the VB down and screw the part onto your existing valve body.

Looks like their store is closed until 06/08 but says he can be called.
T'Flite Patty's Shop Mart | eBay Stores