31 vs 28 spline, do I really need 31?

86bluecobra · Mar 8, 2007

tmoss said:
here is an old trick............paint a straight line all the way down the stock axles that get abuse on the track. once a year (or more depending on the abuse level) pull the axles and see if that straight line has started to "curve". If it has, replace it. Sometimes thay just snap, and sometimes they will show signs of stress before that.

I was told by a old drag racer that when the line makes one full revolution its time to replace the axle. It seemed kinda strange to me but he haid that axles will twist quite a bit before they snap.

tmoss · Mar 8, 2007

it's almost impossible to generalize imo - the stress risers in the material, surface imperfections and the shock level applied to the axel will largely determine that on an idividual basis. If you have the power to twist axles, it's a good indication you need to watch for indications of the severity and/or upgrade.

86bluecobra · Mar 8, 2007

true enough. I need to upgrade but i don't have the cash to upgrade the rear end at all. I don't have the cash to upgrade my tranny either. Until i do i'll continue to buy 300 dollar specials and hope i can get a year out of them. So far i have had 5 in my car.

86nu · Mar 8, 2007

early 90's ranger, right side axle, 5 lug 31 spline, grab two of those

86bluecobra · Mar 8, 2007

86nu said:
early 90's ranger, right side axle, 5 lug 31 spline, grab two of those

but there again the 5 lug conversion adds to the mod list. Now you also have to but new rims maybe even 6 rims if you ahve slicks permentally mounted.

31 vs 28 spline, do I really need 31?

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