BadAss SRT-Z - 2.4L / A568 - Update!!!

[BadAssPerformance]

They use chrome moly for the inners and outers, so they are supposed to haev some spring and ductility to them, but if the heat treat is not right, even CM can get brittle... working on it, will post up when I know more

[csxtra]

Wow JT, too bad about the breakage, but VERY glad to hear that it is not the trans!

[cordes]

Breaking those axles is some serious action. That stinks, but it's pretty impressive at the same time.

[turbovanman²]

They use chrome moly for the inners and outers, so they are supposed to haev some spring and ductility to them, but if the heat treat is not right, even CM can get brittle... working on it, will post up when I know more

Interesting.

[BadAssPerformance]

Wow JT, too bad about the breakage, but VERY glad to hear that it is not the trans!

Exactly! My only fear on the trans is that the diff got beat up with each break... when the PS axle breaks, the torque biasing diff sends all the power to the DS... at least that is my theory as and those splines were starting to twist too

[Pat]

Exactly! My only fear on the trans is that the diff got beat up with each break... when the PS axle breaks, the torque biasing diff sends all the power to the DS... at least that is my theory as and those splines were starting to twist too

Sweet MPH and double sweet that you didn't pop the trans!

Did you get any wheel hop or tire skake? I'm sure that wreaks havoc on those splines. Also, are you running 24.5's still or 26's?

[ShelGame]

They use chrome moly for the inners and outers, so they are supposed to haev some spring and ductility to them, but if the heat treat is not right, even CM can get brittle... working on it, will post up when I know more

Which CM do they use? 4130? Or 4340? 4340 is tought stuff, but if heat treated improperly, it can go brittle, as you mentioned.

[Reeves]

Please keep us updated on what DSS has to say. This is going to be our next adventure I'm afraid......trying to find more durable axles.

Exactly! My only fear on the trans is that the diff got beat up with each break... when the PS axle breaks, the torque biasing diff sends all the power to the DS... at least that is my theory as and those splines were starting to twist too

I'm not sure if this is true or not.....I mean, once an axle breaks, you go no where......so technically the power IS NOT going to the other axle.

[Pat]

Please keep us updated on what DSS has to say. This is going to be our next adventure I'm afraid......trying to find more durable axles.



I'm not sure if this is true or not.....I mean, once an axle breaks, you go no where......so technically the power IS NOT going to the other axle.

That's correct...with the torque biasing diff, you need some resistance on one side to transfer torque to the other. If one side is completely free wheeling, like if an axle breaks, you'll get no power transfer to the other side.

[Reeves]

That's correct...with the torque biasing diff, you need some resistance on one side to transfer torque to the other. If one side is completely free wheeling, like if an axle breaks, you'll get no power transfer to the other side.

Which really is a good thing, as I saw Jon Moore come inches from taking out the tree when an axle broke on his welded diff DOH!

[BadAssPerformance]

Sweet MPH and double sweet that you didn't pop the trans!

Did you get any wheel hop or tire skake? I'm sure that wreaks havoc on those splines. Also, are you running 24.5's still or 26's?

26's, and yes tire shake on teh set taht went a couple passes... no tire shake on the last one that popped

Which CM do they use? 4130? Or 4340? 4340 is tought stuff, but if heat treated improperly, it can go brittle, as you mentioned.

Pretty sure 4340, and they said bad heat treat the last PS one I cracked and I'm wondering if these were from teh same LOT

Please keep us updated on what DSS has to say. This is going to be our next adventure I'm afraid......trying to find more durable axles.

I'm not sure if this is true or not.....I mean, once an axle breaks, you go no where......so technically the power IS NOT going to the other axle.

Yeah, will work with DSS to figure this out for sure.

Hmmm... but it was moving forward a bit when it popped, so...

Wow, you got 4 of those bad boys! Do they give bulk buy discounts?

Kinda I'd be willing to do a group buy after we get this figured out and if there is enough interest

[ShelGame]

26's, and yes tire shake on teh set taht went a couple passes... no tire shake on the last one that popped



Pretty sure 4340, and they said bad heat treat the last PS one I cracked and I'm wondering if these were from teh same LOT



Yeah, will work with DSS to figure this out for sure.

Hmmm... but it was moving forward a bit when it popped, so...



Kinda I'd be willing to do a group buy after we get this figured out and if there is enough interest

What's the cost from DSS? It might be worth looking into having Metalore make some. If it's just the shaft (and not the CV also) they might be competitive.

[Reeves]

I don't think I've ever broke the middle of a shaft. Usually I break the shaft inside the trans, the inner CV, and now the outer cv. Oh....hang on....I take that back....I think I have broke the middle shaft on one of the CV ends before or a few times.

---------- Post added at 02:13 PM ---------- Previous post was at 02:12 PM ----------

Wow that is really hard to read. Sorry.

[turbovanman²]

I don't think I've ever broke the middle of a shaft. Usually I break the shaft inside the trans, the inner CV, and now the outer cv. Oh....hang on....I take that back....I think I have broke the middle shaft on one of the CV ends before or a few times.

---------- Post added at 02:13 PM ---------- Previous post was at 02:12 PM ----------

Wow that is really hard to read. Sorry.

Put down the beer, lol.

[BadAssPerformance]

What's the cost from DSS? It might be worth looking into having Metalore make some. If it's just the shaft (and not the CV also) they might be competitive.

IIR, I think the L5's were like $800/pair?

Its the splined end of the inner "tulip" (CV housing) that keeps snapping off. Their design is pretty strong, but I'm pretty sure its a material or HT issue.

Parts shipped out today, they will have them Friday

[Reeves]

Pics of my broken axle from Monster Mopar Weekend (same weekend JT broke his two DSS axles) FWIW:

http://www.turbo-mopar.com/forums/sh...d=1#post950385

[BadAssPerformance]

What's the warranty and how much to repair/rebuild?

Their typical warranty is 1 year.. the set that had over 200 runs on was ~200 including shipping to get two new inner joints installed, but those are 7years old. The next one to break the pass side one (which was also 7 years old, but w/o as many runs on it) they took care of. Will see what we end up doing with these two now. I REALLY want to just figure it out so we got an alternative that works

Pics of my broken axle from Monster Mopar Weekend (same weekend JT broke his two DSS axles) FWIW:

http://www.turbo-mopar.com/forums/sh...d=1#post950385

Yeah, track was sticky, tuff on axles... Whats that center bar made of?

[Reeves]

Yeah, track was sticky, tuff on axles... Whats that center bar made of?

While I agree the track was sticky, I do not believe that is why we were breaking axles. I was having uncontrollable wheel hop in left lane that I believe was caused by rough track conditions and layers of rubber. I never have wheel hop on a non-sticky track (spin) and usually never on a sticky track either. I think it was a combo of the track set to "hook" and a combo of a TON of cars putting down rubber and not enough time to clean up the layers due to too many oil downs to clean up.

Center bar and CV's are all stock Dynasty, except narrowed to fit in OMNI.

[BadAssPerformance]

yeah, wheel hopped thru 2nd

but the last one i broke didn't make it more than 10' down the track... i think it was just a bad part

[BadAssPerformance]

I need axles bad, want to run it more this year!

Vids from Monster...