Hey, I want to know what is gonna be stonger.

A 10 bolt with a T/A cover, and an Auburn Pro Series Differential, and a good set of 3.73's

OR

a 9 bolt Aussie Rear with SLP 3.70 gears? (Not to be confused with a 9 inch)

I know the 9 bolt is stronger, but I wasn't sure if the 10 bolt with that other stuff would be just as strong or stronger.

This is gonna be used on an automatic car that should be running mid 11's or faster on juice.

Let me know, I need the strongest unit untill I can afford a 12 bolt.

Thanks,
Eric

 

Hi,I am partial to the 10 bolt just because the parts are easier to find and alot cheaper.The T/A cover is good but I prefer the Zexel Torsen HD unit over the auburn pro,weld your axle tubes all of the way around and if you have the money,get some alloy 28 spline axles.Read my article in the tech section,"Beefing the 7.625" 10 bolt", also read Daniel Burk's rearend article.Lots of good advice in them.

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92 GTA(only 226 made)ort matched sportsman heads with 2.05 valves,64 cc,milled .015,.028 head gaskets,port matched Accel runners,port matched plenum,port matched edelbrock intake,flow matched injectors,jet hot headers and 2.5" mandrel bent exhaust,Flowmaster muffler,underdrive pulleys,slp cam,1.6 rockers,slp cold air induction,52mm throttlebody,performance resource custom chip,Dyna module,Screamin Demon coil,Accel 8.8 wires,Bosch platinum plugs,timing at 10 degrees,tb bypass,relocated map sensor,shift kit,Fairbanks billet servo,pump vane kit & 2400 stall,Torque converter lockup switch,3.42 posi with welded axle tubes,Zexel Torsen HD diff.,Summit rearend girdle,solid pinion spacer,& alloy axles.Boxed panhard bar,lakewood lca's & edelbrock strut tower brace,Jeg's torque arm,Jegs welded in subframe connecters.Performance friction pads,turbo slotted front rotors,stainless braid brake lines.Roh ZT 17x8.5 front wheels with 255/40ZR/17 tires. 17x9.5 rear wheels with 275/40ZR/17's on the street.Hoosier 26x9.5 slicks on the strip.

 

Cool, thanks!

Anyone else have any advice? I currently own one of each and I'm trying to decide which to use.

Eric

 

9 bolt is stronger.

Miles

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88 427 Camaro
12.18 @ 113mph 1.75 60ft

www.koolmeister.com

 

Where exactly is that article on "Beefing the 7.625"? Which board? I'd like to read it. Its what I need right now. Thanks.

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1992 Z28 (305) TPI.
160' stat, Accel 8mm, Accel Cap & Rotor,
Flowmaster, high-flo cat.

 

The article on beefing up the 10-bolt is in the tech articles section of this website.

I would say the 9-bolt is better, because it doesnt use c-clips. NHRA rules say you cannot use a c-clip axle if you're running 11's, or is it 10's... ? But most people switch to a Ford 9" by that time.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

The 9bolt should last for awhile as long as you dont plan to leave with some serious 60fts.

Mine held up under probably 150 1.6X 60fts.

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Mike
1989 Turbo Trans-Am
11.25@121.25
Only had the valve covers off once... 106K miles and still going. 300+ Runs.

1998 Trans-Am LS1 6 Speed
13.10@106 Bone Factory Stock