Pontiac GTO 2004-2006 The Modern Goat

31 Spline Level 5 Axle testing

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Old 04-15-2013, 11:01 PM
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Default 31 Spline Level 5 Axle testing

We've been shipping a few sets of the 31 spline axles out with 9" kits and some of the heavier platforms like the Dodge Challengers.
We've also been doing some good testing on the new axles to make sure they are up to the task.
We took our GTO shop car out and hit it pretty hard off the line to see how the new axles would hold up.
We got a 1.33 60ft, a 1.31 and then we cranked it up a bit and did a 1.27 60ft off the line with the wheels in the air. Who says IRS cars don't pull the wheels? LOL
Next outing we will hit it even harder.








Old 04-16-2013, 09:19 AM
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Looks like they are some great parts!

As far as strength, I swapped a 9" solid axle with a locker and 31 spline into my 04. I'll be honest it was kind of a pain in the *** getting everything right with all the 4 link mounting points and back balding the car.... So, how should these axles your testing compare to the good old 9" strait axle as far which one is stronger...do you think we will get to the point where there is no need to do the strait axle swap because these will match them in strength?
Old 04-16-2013, 10:43 AM
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Originally Posted by mark21742
Looks like they are some great parts!

As far as strength, I swapped a 9" solid axle with a locker and 31 spline into my 04. I'll be honest it was kind of a pain in the *** getting everything right with all the 4 link mounting points and back balding the car.... So, how should these axles your testing compare to the good old 9" strait axle as far which one is stronger...do you think we will get to the point where there is no need to do the strait axle swap because these will match them in strength?
I'd put our 9" up against any solid rear car, it's all 9" parts so the only difference would be the cv joints.
Our shop car along with some other really fast IRS cars can 60ft with the best of them.
In our local x275 racing, our IRS car hangs with all the solid rear cars real well.

Thanks
Chris



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