I just realized I cant turn left and pulled off my diff cover to find not a lot of spider gears. I figure I'll just find another 10bolt and through it in for the quickest and cheapest solution. Anyways, I read the numbers off the ring gear and the last 4 were "12 41 11 88." I'm assuming I have a 3.42 built in november of '88. Or do I have 3.73 and I have no idea what the 12 and 88 are for then. I'm pretty sure its 3.42s though. What years of 10bolts can I accept? Thanks guys.