I am looking for some help with swapping my TH350 for a 5 speed. I'm not sure which transmissions can be fitted to the Ponch motors, but there are a ton of Ford (mainly Mustang) Tremec 5 speeds available, but I'm curious if they will work with a Ponch bellhousing conversion. Any advise if appreciated as well as tips on 5 speeds for sale in the southern CA area. Thanks