[rattec]

Stepping up the horsepower on my blown BBC 496, and worried about the gm 12 bolt I have been running. What do you suggest without breaking the bank?

 

[Mike]

What's the current rear set up?
Carrier ,axle spline count, axles ,housing ends,etc.

 

[rattec]

Currently factory GM 12 bolt housing with complete welding around axle tubes. Detroit locker, 3.73 gear, Moser 31 spline axles with c clip eliminaters

 

[Mike]

Put a girdle on it.

 

[rattec]

Really? I currently am running high 9's and hoping for mid to lower 9's, with my 3800 lb car.

 

[Mike]

Didn't sound like your interested in adding Ford ends ,33 spline axles ,carrier mod for 33 splines(side gears) ,so a girdle will add stability 'without breaking the bank'.

 

[69 Malibu]

I hate to let it go but I will trade you my 8.2 with the mini spool.

 

[rattec]

Thanks

 

[Bob West]

Moser 12 bolt or a Ferd 9".

 

[engineguy]

A 12-bolt with all the internal goodies and a girdle will stand up to a lot of horsepower and are typically used in many 9 second cars. The ultimate rear end for strength and minimum torque drag is the Dana 60.

 

[Sinister]

Girdle and 33 spline axles.

 

[LytesOut72]

Strange S60 with a Det locker. Comes with 35 spline axles, 1350 saddle, big f*rd bearings, and 1/2 inch studs. Strange says its good for 1200 hp. I think you can get it with the locker for $1900. Sell your 12 bolt and you may only be out a few bucks! You'll never have to think about your rearend again!

 

[LytesOut72]

A 12-bolt with all the internal goodies and a girdle will stand up to a lot of horsepower and are typically used in many 9 second cars. The ultimate rear end for strength and minimum torque drag is the Dana 60.

:yes:Amen

 

[bracketchev1221]

Mine has gone 1.26 in 60 ft at 3160 lbs with all of the stuff mentioned. 33 spline axles, pro gears, billet caps, and a girdle.

 

[toofastforyou]

A 12-bolt with all the internal goodies and a girdle will stand up to a lot of horsepower and are typically used in many 9 second cars. The ultimate rear end for strength and minimum torque drag is the Dana 60.

X2!...You should be ok with a properly built 12 bolt axle (spool, axles, tube braces and girdle cover). Also, I think that the guys who are using a Ford 9" instead of a Dana 60 do so because he Dana is too heavy.:yes:
Personally, I'm still using the original 8.5" 10 bolt axle on my Buick Grand National (with Moser spool and axles) and am running in the high 9's with it without any issue.

Claude.