I've installed a set of Patrick's 3.55 gears in my 46, Gmc cc102 w/3spd. Does anyone know the drive gear tooth number? I've tried Jim Carter, sent back about 5 till money refunded. Then Obsolete trucks which uses Patrick's, no luck. Most of the shops want # of the drive gear teeth, rear end ratio to build one. I don't want to remove the trans. at this time.