1100hp street machine....help with rear end

[jason@gmachine]

give us a call at the shop. WE can set you up with some serious strength, after all i come from the high end Desert racing industry where strength is survival. For that Kind of power you are looking at some 1.25" F-K heims with 4130 arms fully TIG welded arms and some 4140 Light Racing recievers. When it comes to building some super strong arms, we are the ones to call. Even if you are going to do the fab yourself we can set you up with the Heims, recievers, and even CNC cut out 4130 plating for the arms as well. We could set you up with something like this, but alot stronger because of the horsepower.





We CAD design all the parts we make and stress test even before any metal is even cut.

here is a F-K 1.25" heim, 125,000 LB rating!!!



Jason
562 595 5410

[pano911]

Bruce, yea the engine is underway...car in shop having turbos mocked/ headers fabbed, half of parts in shop already

Gregg

[pano911]

Bruce, checked out your car profile; looks like you're dealing with similar power. Is your car on the road yet?? How's that Detroit Locker on the street? I'm trying to decide between 9" True Trac 31-spline, 9"Locker 35-spline, Dana 60 True trac 35-spline....

[camcojb]

Originally Posted by pano911

Bruce, checked out your car profile; looks like you're dealing with similar power. Is your car on the road yet?? How's that Detroit Locker on the street? I'm trying to decide between 9" True Trac 31-spline, 9"Locker 35-spline, Dana 60 True trac 35-spline....

if it hooks you'll need something like the locker and 35 splines. A bit clunky on sharper turns but totally streetable in my opinion. I ran a true trac in my last car, but don't think it'll handle your power level constantly, though if it's with street tires it may be fine.

I have no experience with the 35 spline true trac.

Jody

[pano911]

Originally Posted by camcojb

if it hooks you'll need something like the locker and 35 splines. A bit clunky on sharper turns but totally streetable in my opinion. I ran a true trac in my last car, but don't think it'll handle your power level constantly, though if it's with street tires it may be fine.

I have no experience with the 35 spline true trac.

Jody

Would the D Locker just be clunky (noisy) or would I actually notice it influencing handling as it locks/unlocks??

[TLWiltman]

Originally Posted by pano911

Please explain floater axle...not familiar with this term....??? .

Full floater axle. Basically, the norm is a semi-floating axle in which the axle inner end is supported by the diff, and the outer end/hub is supprted by a bearing which also supports the weight of the vehicle. A full-floater has a seperate hub assembly, supported by 2 bearings, that support the vehicle weight. The axle inner end is splined to the diff, and the outer end is splined to a "drive plate" which is bolted to the hub and mounts over the wheel studs. In this design, the axle supports NO weight, only rotational forces. This allows the axle shaft to be designed only to handle rotational forces and can be theoretically stronger

My setup...
-L-D fabricated Full-floater 9" w/Stock Car Products snouts
-Nodular third member
-31-spline detroit locker/3.25 gears
-Stock Car Products hubs/bearings/drive plates


hope this helps
EDIT: added better pics in my original post to better illustrate a "full-floater"

[novanutcase]

CA Fab 9?

[Speedster]

Originally Posted by pano911

Bruce, checked out your car profile; looks like you're dealing with similar power. Is your car on the road yet?? How's that Detroit Locker on the street? I'm trying to decide between 9" True Trac 31-spline, 9"Locker 35-spline, Dana 60 True trac 35-spline....

Not on the road yet. Jody has it right - if you use street tires only, then you could get away with 31 spline with TruTrac, but if you ever want to take it to the track with slicks you will need 35 spline axles with the Locker. Did a bunch of research on this and spoke with the techies at Currie, Mark Williams, Strange and Moser. They concurred. Also, if you do that go with the Pro Nodular Iron case with 3.25" (not 3.0625") bore spacing. It's only a $90 upcharge and has almost zero deflection.

[pano911]

Yea, the 31-splines scare me...I know if I have big power available, eventually I'll want to try it out at the strip. Some folks even are saying use a spool on the street and I'll never notice it....? Sounds extreme. Maybe the D Locker is the best compromise within a 9"....Dana 60 with 35spline/True trac is the other option but I really don't want to do that.
Gregg

[camcojb]

Originally Posted by pano911

Some folks even are saying use a spool on the street and I'll never notice it....? Sounds extreme.
Gregg

trust me, you'll notice it. And don't even consider high speed cornering. Don't do a spool for the street.

Jody