need to know if anyone has some advice on a replacement rear end for my 70. will be replacing eng. w/a 385 fast burn 350zz crate next week, and will be changing rear end soon after. want a 12 bolt posi or limited slip, dont plan to race it, but still want a good launch w/o burning up the meats. (have to beat the moustangs) have been to some sites, but im all F***** confused about the ratios and the third member, splines etc. is currie good? where else can I look that will not kill my wallet? thanks in advance.

 

if you dont' want to kill your wallet you should stick with a 10 bolt. you could use a stud girdle cover to help the caps from walking. try to find a 8.5" carrier unstead of the easily found (and weaker) 8 1/4".

a 3:55 rear gear is a quick one and you still won't lose your highway driving that much. 3:73 will kill you. I don't know how much you know, but whichever gears you go with, but if you plan on buying one and changing stuff, you want to make sure the rearend you get has the right series carrier already in it. that will save your pocekets again

 

Don't overlook the suspension if You want it to hook up. Go to an NHRA national or divisional race where they are likely to have a lot of NHRA Stock Eliminaror cars and check out the suspensions. Don't be afraid to ask some of the racers about setting up a chassis and tell Them what You are trying to do. You will be truly dazzled by how well They launch off the starting line and how fast They go with unported heads, stock lift cams, etc. I have a friend with an A/SA '68 Corvette 427 Automatic that runs 10.40's and another friend that has a G/SA '66 390 Fairlane Automatic that runs 11.10's ( rules say only 9" Slicks ). The second guy had a A/SA '66 427 Fairlane back in 1989 that held the national record at 10.49. The record in A/SA is now in the 9.90's. Chassis, Chassis, Chassis! Don't forget it.