twisted splines.

[CHANMADD]

serious launches and burn outs are going to do that to almost any axle you buy. Driven like at the drags,replacing axles will be a regular thing.
John

[undy]

Originally Posted by CHANMADD

serious launches and burn outs are going to do that to almost any axle you buy. Driven like at the drags,replacing axles will be a regular thing.
John

100% street.. never raced. I do run drag radials though.

[blykins]

Dave, might as well make it right before you button it back up. Axles are cheap.....you can get a set of Strange axles in 28 or 31 spline for around $200. If it were mine, I'd go with at least 31 spline.

[Silverback51]

Years ago I had an "A" Class Econorail with a big block Chevy.

We would blue the axles to track how much they twisted. We always used about 45 degrees as an idicator it was time to replace them with a new set.

[undy]

It takes about 10 minutes to pull an axle. I might let it go for now and pull it at the end of next season to see if I've more twist. That is, unless.. I twist one in two first. It'll cost me around a grand to upgrade to 31 spline and right at $1500 to go with 35 spline. The difference being that there's a limited selection of posi units with 35 splines. If I replace things I'm inclined to go to the 35 splines.. Decisions, decisions...

[Power Surge]

I'd contact a real race axle company (Moser, Strange, etc) and just have them make you a set in the same configuration.

[undy]

Originally Posted by Power Surge

I'd contact a real race axle company (Moser, Strange, etc) and just have them make you a set in the same configuration.

...and stay with the 28s? I thought Currie's axles were of similar quality?

[eschaider]

Originally Posted by blykins

Dave, might as well make it right before you button it back up. Axles are cheap.....you can get a set of Strange axles in 28 or 31 spline for around $200. If it were mine, I'd go with at least 31 spline.

+1 Dave,

When you do it go to 31 splines. There is a world of difference in terms of strength. When you go to 31 splines you will also have to replace the side gears in the differential. Not a big deal from a cost standpoint but a little work from your standpoint. Great experience though and good step towards a significant step up in reliability.

Thirty five spline axles are extraordinarily strong and come very close to a set it and forget it part. When you use a pair of these axles you ought to have a minimum 3.25" bearing bore in your 9" carrier. If you are using a Dana 44 then I would probably stop at 31 splines. I am unaware of anyone making '44s with 3.25" bearing bores and the wall thickness on the differential housing at the bearing gets very thin. The thin wall becomes your first point of failure, so ... you get the picture.

Whatever you do don't go back to 28 splines even in a quality axle like Strange. The 28 spline axle is for a lower power/performance level than you are capable of creating.

Ed