Will a limited slip rear end put less stress on the axles then an open differential?
In other words, is there less of a chance of blowing up the rear end if you have a posi then an open?
I'm guessing that it would put less stress, instead of all the torque going to one wheel it is split to both? Or does the same amount of torque go to both wheels with a posi.

------------------
86 Camaro Sport
383 Speed-O-Motive Crate Engine, Trick Flow Heads, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Dynomax Cat-back, Serpentine belt setup, Dual IROC Fans, Jamex Springs.

http://www.sethirdgen.org/octride.htm

 

i'm inclined to think a posi would be better, but i really don't know. posi has few more parts to break

------------------
ICON Motorsports
1st & 3rd

 

If your talking axles, a posi would be worse. In an open diff, alll the torque is applied to one wheel. Ever try hooking up an open diff? It's when it hooks up,that's when something will give. All that torque will usually overpower the tire and spin it like crazy. Now on a posi, the torque is almost even to both sides. So with good tires, the chances of hooking up are better. Remember when you floor it, your basically shocking the suspension,diff, etc. into reacting. If your tires hook up, something else will try to absorb the load, meaning if your axles are weak, get ready for some broken parts.
Think about it. At a dragstrip, when do most axle failures occur? Right near the starting line.

Hope this helps

------------------
85 Berlinetta Iroc exterior Lg4 305 best e.t 14.4 street tires naturally aspirated....installing/ rebuilding 450-475 HP 454....YAHOOO!!!

 

That's what I wanted to know. I thought all the torque goes to both axles equally and not divided between the two. So if I have 400ft.lbs. of torque each axle will feel 400 or 200?

 

oh boy....now your getting into bigtime math!
If the engine had 400 ft lbs at the flywheel you would then have to take into account the mechanical advantage of the tranny/driveshaft and gears. So technically speaking, on a launch in first gear you would be putting down thousands of ft.lbs.at the wheels.
As for the wheels I believe that both the wheels would get 400 ft.lbs. By your description the diff carrier would be getting
400 ft.lbs and the axles would turn in unison. Too much math for me. Hope I didn't confuse u. Think I confused myself!!!!


------------------
85 Berlinetta Iroc exterior Lg4 305 best e.t 14.4 street tires naturally aspirated....installing/ rebuilding 450-475 HP 454....YAHOOO!!!

 

Multiply the flywheel torque by the transmission gearing and the final ratio. That is the torque being applied to the carrier (for a 400 ft-lb engine w/TH700 and 3.08 rear, that would be about 3800 ft-lbs). Now, in order for the torque to really be "applied", it has to be resisted. In a posi, each axle will resist equally and therefore one-half of the carrier torque will be borne by each axle (they share the load so the total of the two is equal to the carrier torque according to Mr. Newton - there is nothing to multiply it between the carrier and axles), or about 1900 ft-lbs in this example.

In an open rear, most of the torque is being resisted by the right tire (or at least the one with the best traction), and if you have enough traction on that tire to keep it from slipping then yes, that axle is taking more torque than the other.

To add to what Craz said, think about this: Have you ever seen a broken axle on an open-diff car? Why are c-clip eliminators only required on posi diffs?

------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.73 unlimited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, TBD heads, exhaust, paint, etc.).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.

 

Thanks for the physics lessons people. I learned a lot.
No, I have never seen a broke axle on a open rear.
Why are c-clip elimenators required on a posi diff and why doesn't the factory do it if it's required???



------------------
86 Camaro Sport
383 Speed-O-Motive Crate Engine, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Dynomax Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
http://www.sethirdgen.org/octride.htm