The shop probably just disconnected the speedometer cable when swapping transmissions. The "should" have several old ones if the do trans rebuilds. But if you can't get the old, original gear back, here is a chart to figure which gear/pinion is needed.
There are several similar charts on the net. Some vary a little bit.
Locomotion, Thankyou very much for all the info and chart. Helps a lot. Appreciated! Stopped back at the tranny shop and they don't have one (37 tooth) in stock, but will look to sorce one for me. Thanks
