[Outlaw72]

Believe it or not the 8.5 10 bolt is a stronger rear than a truck 12. Keep in mind there is a difference between a truck 12 and a car 12.

The truck 12 has a 1.4XX pinion shaft diameter and the 8.5 10 bolt has a 1.6XX pinion shaft diameter. The car 12 also has this 1.6XX pinion shaft diameter. Therefore, the truck 12 is weaker in the pinion shaft.

Also, the truck 12 has a 3/8 ring gear bolt as opposed to the 7/16 ring gear bolt of the 8.5 10 bolt. This is a weak point also.

This doesn't mean it's a weak rearend, it just means theoretically and on paper it is not quite as strong.

I guess I should elaborate on my statement of "weak"....I wasn't trying to say the 12 bolt truck is weak. Otherwise, I would not have spent the money to beef it up. It was more of a test for me to see how well a strong one will hold up in extreme nitrous situations and 1.5X possibly 1.4X 60.ft times. A low 1.5 60ft. for me is right around the corner and I want to know how strong they really are with almost full lwb weight on top of them.