opinions on 10 bolt or 12 bolt

[lechez71]

guys i have a 10bolt 8.5 in my 82 c10 with 2.73 gears and an open diff. im getting ready to order 4.11s, lsd, and a master install kit. this got me thinking though i can get a 12 bolt for $100 would it be worth it? either way i go im gonna get new gears, and a lsd. ive seen 10 bolts take some abuse, but if the 12 bolt would be better i dont mind swapping it out. so what are your opinions should i stay with the 10 bolt or get a 12 bolt in it. will be steet/track truck, with a goal of 11s. at the track ill be running 28x10.5 slicks.

[zieg85]

I have heard that both are pretty much equal for strength.  If you have the coin you may want to go with a Ford 9" like many have done on this site.

[K20Wulf]

The 12 bolt is stronger. No question. For 100 bucks I say buy it.

GM 10 Bolt 8.5" ring gear - axles are either 28 or 30 spline

GM 12 Bolt 8.875" ring gear - axles are 30 spline

It may not be a huge difference, but spline count and ring gear size matter. If you're still unsure and really want strong go with Zeig85's suggestion of the Ford 9".

[lechez71]

well the 12 bolt sold fast should have jumped on it, but wasnt sure. anyway theres plenty of junk yards here that sell differentials for $100-$120 just have to remove them myself. i dont want to do the ford 9" just want something that will bolt on. if not ill stay 10 bolt.