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mtmace
11-01-2013, 12:09 PM
I currently have a ford 9" for my 1968 camaro, the car was setup for the strip.
Now that the project is taking a different turn (road rally) should I invest the 9" with disc brakes and a gear change with posi or should I look for a 8.5" 10 bolt?
I am planing for a 450-500 hp engine with 4.11 gears, the transmission will be a 6 speed.
Since I don't have that much money in the 9" I was wondering if saving weight with the 10 bolt is a good option?

Aftermath Hotrods
11-01-2013, 04:13 PM
It is almost a shame that virtually every bad ass hot rod you see these days rolls with a 9" rear, gets kinda boring. But this isn't because they're cheap or readily available, it's because they are relatively light weight and virtually indestructible. A ten bolt might save you a few pounds but there is no comparison when it comes to strength. Keep the 9", put some disks on it and rest assured, you'll likely never break it. Just my .02

mtmace
11-01-2013, 07:00 PM
Thanks for your reply. I also found out that they are pretty modular in design you can upgrade them easier to fit different applications.
I think it is worth keeping.

srh3trinity
11-01-2013, 07:52 PM
I would keep it. Most people switch to nines if they can swing the money.

MonzaRacer
11-01-2013, 08:24 PM
Also dont forget to look around as there are aluminum center sections which drop weight. Also there IS a center that uses 12 bolt gears and posi for some adjustability.
Also if you use stock centers stay away from WAR casings, they have WAR cast into the flange on them, the are lightened up units and have reliability issues.
As said by others, swap on some Corvette or S10/Blazer discs (assuming you have GM ends installed)(this is also assuming you might need to change axle widths)
Good luck.

Antti66ht
11-05-2013, 10:59 AM
Ford 9" with currie 31 spline axles and moser alu center section weights 68,7 kg
Ford 8" with strange 28 spline axles and Strange alu center section weights 53,9 kg
8,5" 10 bolt weight? Somewhere in between?

Alu centered 9" estrenght / weight ratio is hard to beat?

mtmace
11-05-2013, 12:29 PM
Thanks, I have decided to invest the money in my 9".
I was not aware of the aluminum center, I will look into that.

BMR Sales
11-07-2013, 08:00 AM
Definately keep the 9 - you would probably tear the 10 Bolt up on a Road Course

T.C.