9" rear: limits of 31-spline axles?
08-14-2005, 12:05 PM
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9" rear: limits of 31-spline axles? Anyone out there broken a 31-spline axle (please list setup), or know their limit? I'm picking out parts to slowly build a 9" and I'm trying to decide if 31-splines is enough, or if I should step up to 35.
The car is a 6-speed, the setup will be a heads/cam car on a 150 shot (nice amount of torque) using 28" slicks. Will 31-spline axles have any trouble handling this?
The car is a 6-speed, the setup will be a heads/cam car on a 150 shot (nice amount of torque) using 28" slicks. Will 31-spline axles have any trouble handling this?
08-14-2005, 12:34 PM
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I've gone 9.6@143/144mph three times.
But I think a stick car will hit it harder, so I'm not sure how that might work. Sounds like you might be mid to low 10's, so I think that would be okay.
But I think a stick car will hit it harder, so I'm not sure how that might work. Sounds like you might be mid to low 10's, so I think that would be okay.
08-14-2005, 12:35 PM
#4
Big Rick is running 31 spline axles in his car. went 8.08 at 172mph (??) Still holding up fine.
Personally, if i were buying a new rear end and putting something in it other than a posi, i'd go ahead and get 35 spline axles. If you're going to run a posi, 31 spline is the biggest you can go.
I also had 31 spline axles in my 6-speed cam/nitrous car, ran low 1.5x 60's and it all held up fine. If only i'd had the same luck with my clutches
Personally, if i were buying a new rear end and putting something in it other than a posi, i'd go ahead and get 35 spline axles. If you're going to run a posi, 31 spline is the biggest you can go.
I also had 31 spline axles in my 6-speed cam/nitrous car, ran low 1.5x 60's and it all held up fine. If only i'd had the same luck with my clutches
08-14-2005, 12:53 PM
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http://www.moserengineering.com/mose...r/axletech.htm
Try that site. Moser's tq rating is 7,000 ft/lbs per axle for the 31 splines.
Try that site. Moser's tq rating is 7,000 ft/lbs per axle for the 31 splines.
08-14-2005, 01:09 PM
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Originally Posted by BuckeyeROC
http://www.moserengineering.com/mose...r/axletech.htm
Try that site. Moser's tq rating is 7,000 ft/lbs per axle for the 31 splines.
Try that site. Moser's tq rating is 7,000 ft/lbs per axle for the 31 splines.
Well I think I'm going with 31-spline axles and a detroit truetrac, unless anyone convinces me I should step up to a 35 (in which case I'll have to step up tp a detroit locker). Thanks for the help guys!
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08-14-2005, 10:47 PM
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Originally Posted by Hawkcmc
Putting down the power you are, I would suggest going ahead and just getting a soft locker. Dont know if the Tru Trac will hold up to well on slicks.
CMC
CMC
08-15-2005, 01:15 PM
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Originally Posted by 1CAMWNDR
If you go with 31 spline axles you get the "soft" locker. The heavy or loud locker is only for 35 spline axles. Get the locker!
08-15-2005, 02:18 PM
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Definately get the locker, no point in regretting a broke posi later on. I will be selling my 9" with a 31 spline locker in the next few days. So if you are interested in a good deal let me know.
CMC
CMC
08-15-2005, 03:01 PM
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Originally Posted by Hawkcmc
Definately get the locker, no point in regretting a broke posi later on. I will be selling my 9" with a 31 spline locker in the next few days. So if you are interested in a good deal let me know.
CMC
CMC
08-15-2005, 06:38 PM
#13
Originally Posted by 1CAMWNDR
If you go with 31 spline axles you get the "soft" locker. The heavy or loud locker is only for 35 spline axles. Get the locker!
