Well I thought I found the right T5, driveshaft and rear end for a pretty fair price and it has a 145 part# tag which is supposed to be out of a 85-86 S10 and with the 3.76-1 first gear and .72 OD.ratio. That is per the list anyway. Well the tail shaft housing is date coded 88 and the forward half has a 91 date code. I checked the ratio by marking input and out put shafts at 12:00 and turning output CCW 10 revolutions and counting input shaft spins. Did that for first and OD and it seems this trans has the 4.03 first and .86 OD, not what the part number on chart suggested it would be. But still it is a matched trans and rear end from same S10. The tag sold me, I thought luck had found me with the right ratio I was looking for. The rear end has no tag telling ratio I guess I could spin and count revolutions. Could 1st and OD gears be changed?
