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Author Topic:   hardened axle needed on RR or no?
nice_guy_wi
Dirt Maniac

Total posts: 120
posted June 20, 2004 07:28 PM  
Do most of you guys run hardened axles on the right rear? We always have, but most don't around here. We snapped a hardened one last night setting the car thru a rut in the corner. Are we going to regret putting the stock one back in?

nice_guy_wi
Dirt Maniac

Total posts: 120
posted June 20, 2004 07:47 PM  
I over looked the obvious I see rereading my post. It's in an 85 Cutlass with a 7.5 rearend.

bigcityracer
Dirt Freak

Total posts: 431
posted June 20, 2004 09:32 PM  
I run mosers in both.

racer17j
Dirt Forum Champ
Total posts: 5390
posted June 20, 2004 10:04 PM  
After 4 weeks and 2 broken axles we started running hardened ones. Can't afford the aftermarket ones so we harden them ourselves. But the result is, 2 1/2 years, no broken axles so I would do it.

trynmods
Dirt Full Roller

Total posts: 53
posted June 21, 2004 04:18 PM  
racin2much, How do you harden a stock axle? We are on a limited budget also and if its somthing we can do in the shop we will. Thanks.

waltonjr1
Dirt Forum Champ
Total posts: 516
posted June 21, 2004 05:41 PM  
Heat it up cherry red then soak it in motor oil. Thats what we did when I worked at a machine shop.


racin2much
Dirt Full Roller

Total posts: 46
posted June 21, 2004 09:06 PM  
Waltonjr1 is right. That is exactly how we do it. Works pretty good and cheap too, my favorite words, lol

nice_guy_wi
Dirt Maniac

Total posts: 120
posted June 21, 2004 09:26 PM  
We have plenty of stock axles and cherry red we can do. Do you just quench them in oil or actually stick them in a oil drum (we have plenty of used oil too). And if you do soak them in it. How long? I love the never ending great ideas we get off here. Thanks for all the help!!

racin2much
Dirt Full Roller

Total posts: 46
posted June 21, 2004 09:37 PM  
I just put a quart of new oil in a small coffee can and stick it in there. Not sure that the length of time effects anything really but I let it set till it is cool while I am doing something else. Usually there for an hour or two but I think the first quench is what does it.

waltonjr1
Dirt Forum Champ
Total posts: 516
posted June 21, 2004 09:58 PM  
Racin, do you just treat the splined end?


racin2much
Dirt Full Roller

Total posts: 46
posted June 22, 2004 07:26 PM  
Yeah just the splined end is all I do. The only times I ever saw the outer end break was due to a crash so never bothered with that end.

ryan
Dirt Forum Champ
Total posts: 776
posted June 23, 2004 06:04 PM  
Yeah we used to break them where the wheel bolts on. Ruined one car because of it, but I run a floater now.

racin2much
Dirt Full Roller

Total posts: 46
posted June 25, 2004 11:04 PM  
ok, then harden that end. Never see them break over there without a crash or previous crash causing it. But if you do, then harden it there too.


accutron71z
Dirt Newbie

Total posts: 2
posted June 28, 2004 08:18 PM  
Check your axles behind the flange for anything that could turn into a crack. Almost like looking for a stress riser in a rod. if you find any sharp imperfections, grind them smooth. You can also use sugar to quench steel when cherry red, but dont do it when kids are around, because it smells like cotton candy! lol

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