Darrel

Hey Guys/Gals, question for you. Did GM have a 9-bolt rearend? Someone I work with says his buddy has a 9-bolt rearend in his GM (not sure which model) car. I know there's a 10-bolt and a 12-bolt, but I didn't think there was a 9-bolt. Unless he's confusing it with the Ford 9 inch diff. Any input would be much appreciated. Thanks in advance.

xaon

iTrader: (12)

yes, there was a 9-bolt rear end in some 3rd gen cars. A third-gen site might be able to give you some more information about it.

TXB4Z

iTrader: (2)

http://9bolt.com

turbotruck

Also called an Australian 9 bolt!

jerflash

ya gm did have a 9 bolt in the 3rd gens

i know because i baught one for my 3rdgen

they are stronger then the standered 10 bolt because it has a bigger ring gear and has 28 spline axles compared to 3rdgen 10 bolt rears which have only 26 spline before 89

tuff

iTrader: (15)

im glade you guys answared that question because would say that is <img border="0" alt="[bullshit]" title="" src="graemlins/gr_bs.gif" /> learn something new every day <img border="0" title="" alt="[Razz]" src="gr_images/icons/tongue.gif" />

distortion_69

iTrader: (20)

How would this be as a cheaper option for an LS1? I've seen these rears go for less than $300 complete on sites. I never planned on making 400rwhp or so, and I already have a 12 bolt. However, I was just asking out of curiosity. If somebody was running a huge verter with weight reduction in an auto that is in the 11's but didn't need the benefits of a 9 inch.. How would this compare in price, and strength? I've read guys throwing 400-500 hp to them in the 3rd gens..
What would it take to convert to 4th gen?

-Josh

trackbird

iTrader: (4)

They really are not any stronger than a 10 bolt (maybe not as strong). I'd not waste time on them.

trackbird

iTrader: (4)

There are only about 2 gear ratios available for them and they are very expensive (I think they run about $375 for a ring and pinion). Thought I'd mention that.