ok guys and girls. i have a 79TA with a larger ten bolt(8.5"?) 2.73 rear gear and i want 3.23s. can i just change the ring and pinion gears or do i need or should i change the spider gears and bearings and what not. the car has 61K original miles. also are the gears from GM itself as good as aftermarket. can i get so pros and cons about going with GM gears. Thanks TINFY

 

i'd buy a gear set and a install kit. it has all you'd need, bearings and such. the spider gears should be fine to not replace.

 

I dont need to change the carier do i? i know the housing is big enough but what about the carrier.TINFY

 

btt