[Top Cat]

We had an issue yesterday when installing the DSS aluminum drive shaft I wanted to make people aware of, the shaft was perfect,it's the 8 bolts that are used to attach to the rear that are a problem. We started to torque down the bolts and the second bolt failed at 40 ft lbs of TQ, so we took all 8 out and replaced them with the next grade up and finished the install in about 30 min, a call will be made to Frank to make him aware of the issue today. Off to the track to test the shaft this morning
TC

 

[ROBY IRLE]

go get em top cat

 

[SRT_HC_707]

We had an issue yesterday when installing the DSS aluminum drive shaft I wanted to make people aware of, the shaft was perfect,it's the 8 bolts that are used to attach to the rear that are a problem. We started to torque down the bolts and the second bolt failed at 40 ft lbs of TQ, so we took all 8 out and replaced them with the next grade up and finished the install in about 30 min, a call will be made to Frank to make him aware of the issue today. Off to the track to test the shaft this morning
TC

That's pretty scary if they are sending cheap hardware. What is torque spec? What size bolt? I'm assuming it was an 8.8 and you replaced it with a 10.9?

 

[B5 Blue]

thanks for sharing

 

[paul suloff]

Had the same sort of problem installing mine. One of the allen heads started to strip while torqueing . Seems like that bolt head is very shallow and small for 57 #? I'm going on torque specs listed here, there were no instructions with the DS.

 

[Nycsrt]

We had an issue yesterday when installing the DSS aluminum drive shaft I wanted to make people aware of, the shaft was perfect,it's the 8 bolts that are used to attach to the rear that are a problem. We started to torque down the bolts and the second bolt failed at 40 ft lbs of TQ, so we took all 8 out and replaced them with the next grade up and finished the install in about 30 min, a call will be made to Frank to make him aware of the issue today. Off to the track to test the shaft this morning
TC

What track you going too?? You should come next week to e town Friday night or Sunday im gonna be there too

 

[Driver72]

Keep us informed of the solution. Hopefully they will make a change to the bolts on future orders. One of the reasons I'm waiting a bit, so little issues like these get sorted out before I order. Thanks

 

[Top Cat]

DSS has been made aware of the issue and Frank said he will call Bruce @ HHP to get his thoughts and a few pictures of the failure, looking at the bolt there was not much left where the head meets the threads and the failure was the head coming off.

 

[Noquarter]

Do we know if this issue was fixed? I just received mine yesterday.

Also, do you need to remove exhaust to put it in?

 

[Top Cat]

I can't say if the bolt was changed, post up a picture if you can, as far as dropping the exhaust no if you have a lift, unhook the two rear fasteners and unplug the cutouts, support the two pipes and let them hang a bit down so you can work around them, if working on the floor it will be easier to drop the entire system.
TC

 

[Noquarter]

Thanks TC

 

[Driver72]

Do we know if this issue was fixed? I just received mine yesterday.

Funny I must have been in the same batch as you. I got mine yesterday too.
Got mine through Dr.B

Have a shop install.
My local Mopar shop specialists are charging me like $325 to install both aluminum DS and my catback exhaust this Friday.
For that, not worth dealing with it myself, and worrying about whether or not any mistakes are being made.

And as I posted a few posts up back in April, this is why I usually wait a bit before buying something that could fail or not perform properly and have serious results because of it.
TC back in April stated they made them aware of it. I'd think they'd of made the changes on the very next batch, back in April. A lot of people have gotten an aluminum DS since then and not one has mentioned this issue since that I've heard of.

 

[SRTgeek]

Thanks TC. I was stuck on whether to go Aluminum or CF. Both rated to 1000hp (or more) - any advice?

 

[B5 Blue]

I called DSS and told them my plans and they said aluminum for me.

 

[VanishingPoint]

I called DSS and told them my plans and they said aluminum for me.

??? More than 1,000 horses?

 

[B5 Blue]

??? More than 1,000 horses?

Nope 700 rear

 

[VanishingPoint]

Not to be nosey-just wanted to know if there were negatives (other than price) for not going CF.

 

[Hector02]

Not to be nosey-just wanted to know if there were negatives (other than price) for not going CF.

I was about to ask same thing!

 

[Fast cat]

I think cf and aluminum are the same HP ratings CF

 

[CDNHellcat]

A typical Allen head cap screw bolt is only a grade 2 rating. For the torque specs and load you need, I would suggest buying a hybrid bolt made out of 17-4 kph. The are several companies that make this grade of bolt for the aerospace industry. Hi strength and no corrosion.