Sunbeam Canada
Donation Time
What is the maximum amount of torque a stock S-IV/V Alpine rear axle can handle?
Welcome to the new SAOCA website. Already a member? Simply click Log In/Sign Up up and to the right and use your same username and password from the old site. If you've forgotten your password, please send an email to membership@sunbeamalpine.org for assistance.
If you're new here, click Log In/Sign Up and enter your information. We'll approve your account as quickly as possible, typically in about 24 hours. If it takes longer, you were probably caught in our spam/scam filter.
Enjoy.
I'm referring to the maximum engine power output the axle can handle.
Now that you have mentioned it. Bolt torque specs would be helpfull also.
I never had any trouble with the axles during all that time, but it seems like someone on the old board posted aomething about some of the rosd race Alpines breaking axles, didn't they? I believe in a well set up Alpine rear end. Mine proved to quite strong, so if you aren't doing some of the crazy things I was doing with my Alpine, I believe they will take anything that even a hot Alpine four cylinder would put out.
Jose
The weakest part, in my opinion is the cast ring gear carrier and pinion housing. Ian has a rear end that broke the pinion housing in half from a loose ring gear bolt or bolts meshing with the gears, but that's catastrophic destruction....but it seems like someone on the old board posted aomething about some of the rosd race Alpines breaking axles, didn't they?
Yes, the Alpine axle was known to break. Lots of documentation exist regarding axle failures. Phil Peron was over yeasterday with three axles and a limited slip assembly for the Alpine and we were discussing just that.
Reviewing the axles Phil had.... of course the later rear-ends have beefier axles (wire wheel version).
Phil was wondering if it would be possible to machine off the splined portion of the hub to enable him to use solid disc wheels with the beefier axles.
It looks feasible but I didn't really have a chance to look at the pieces too closely. I wonder if this was Rootes solution with their "competition axles" since they also had "heavy duty" hubs listed as "approved SCCA" components.
The axles which came with the LSD were 10 spline axles to match up with the LSD. Interesting... the housing was stamped with 22705X. The only other marking was a diamond... which may be a DANA symbol.
Steve
That's why I said a properly set up rear end. All ring gear bolts tight and hardened axle keys. I do seem to remember the fatigue crack through the keyways now. It is too bad that the factory didn't see fit to put a radius on the Woodruf cutter, when they did the keyways. It would have eliminated the crack caused failures.
Jose