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epfatboy · 04-14-2018, 08:07 AM

I’m going to intall some 3.42 gears and a Eaton posi unit in my ‘73 C10 to support my 4.8 turbo build. Pulled the cover and found a good clean open 3.73. Has me wondering if I should keep the 3.73 and Just run a taller tire!

Are these 12 bolts all 30 spline? Think I can get enough of a look at the axle splines if I pull the pin and shove the tire in?.... being lazy!

04-14-2018, 08:07 AM	#1
epfatboy Registered User Join Date: Mar 2018 Location: Barrington nh Posts: 101	12 bolt truck rear. I’m going to intall some 3.42 gears and a Eaton posi unit in my ‘73 C10 to support my 4.8 turbo build. Pulled the cover and found a good clean open 3.73. Has me wondering if I should keep the 3.73 and Just run a taller tire! Are these 12 bolts all 30 spline? Think I can get enough of a look at the axle splines if I pull the pin and shove the tire in?.... being lazy!