I'm trying to find anyone who has reached the torque limit of bigger than stock 28 spline axles to justify the upgrade to 31's. Anyone?
rdksek844 said:I'm sure thew stock ones are weak. But what tells you that aftermarket 28's aren't good enough? Has anyone ever destroyed aftermarket 28's. I have yet to find one honest person who has. And to answer the question as to why not just go with 31's, I have to upgrade the diff. to 31's also. Not just the axles which doubles the cost. I don't mind paying that, but I want to know for sure it's needed.
wurd2 said:It's probably true that aftermarket 28 spline axles are sufficient for our stock power levels, but if you're going to do the rear end work yourself, and can afford the extra parts, you might as well make it bulletproof and go for the extra performance while you have everything apart. This way, if you add a power adder in the future, you'll have a rear end that is more reliable.
djlethalwang said:Well, I know that it didn't take me long to break my factory rearend. I never bolted up a set of DRs either, just had some 275 BFGoodrich KDWS tires and I broke the rearend within four months of having the car. It started to whine early on and finally blew out one day when i was on it. I don't know about aftermarket axles but I know once I start doing work on the rearend I'm getting 9" rearend with 31 splines
rdksek844 said:Well you are entitled to spend your money how you see fit. I don't blame you for shooting for the moon if you are going that route anyway. But in my case, I am just trying to understand the limits of the aftermarket 28's and why they are not as good as the 31's. I have a hard time believing that 3 splines are making that much of a difference. I want someone to prove me wrong, so I can justify shelling out the extra cash. Anyone?
wurd2 said:I respect the approach you are taking towards spending your money on upgrades. However, I don't think you're ever going to get a satisfying answer to your question of how much an aftermarket 28 spline axle can handle, simply because there are just too many variables involved when an axle does decide to snap.
I think your best bet is to call Moser and see what they think. They probably snap axles on purpose with machines just to see how much of a beating they can take. A drag racer that snaps an axle at the track can't tell you exactly how much torque it took to break, and how much stronger the axle needed to be in order not to break.
If you aren't planning on a power adder, then I bet you won't be able to snap a hardened (or aftermarket) 28 spline axle. And especially, if you aren't going to run slicks, then you probably don't need to replace your axles. I don't know about you, but "probably" isn't good enough for me. I would want to be certain about having axles of sufficient strength. I'm sure all of us know here, but snapping a c-clip axle means your rear wheel comes flying off along with part of the axle.
rdksek844 said:Oh and how do you like the 4.30's?