CV Weak Link

[Omelet]

Wow! How much have the NAPA ones been costing you? Do you happen to have a PN for both sides?

[Sal-XK]

I think the QD2 XK's are having this issue more then anything because the amount of torque you guys can get to one wheel maybe. But the good news is I think JBA is going to make there super CV's and steel diff for the XK\WK after all. Chris will no for sure I think he's hinting at getting them. But this is why a tread lightly with the front especially careful not to make them spin to much. But that looked like an awesome trail man!

[TrialByFire]

But that looked like an awesome trail man!

It is a great trail about 75 miles south of Albuquerque! This was my third time on it (the first two w/o breaking) so I let the wife give it a go.
The remanufactured shafts may be the problem, but I don't remember the first OEM shaft I broke looking any different.

[Matt]

Can new ones be bought from the dealer? Might be worth giving that route a shot... remanufactured shafts may be hit or miss for the quality control on the vendor who make the original casings. An OEM part in a case like this may have more controlled specs (material, heat treat, tolerance, etc).

[criket]

I'm waiting for someone to try the SRT CV's and see what happens there.

If I was you dude, I'd take a piece of that casting that broke, call the manufacture (or NAPA to get the number) and call customer service. Send them that piece of casting that broke. Inform them about the weak housing. They should look into the problem and try to resolve it. Sometimes they may even send you a free CV or something.

At least thats what I do sometimes when we have quality issues where I work.

[Matt]

^^that's a good idea. Would also check the rest of the casting to see if there are any part numbers or contract numbers from the vendor. Could very well be a lower grade cast since they doubt we'd be using them offroad like this (most CVs that i've replaced at the shop were due to the boots wearing, you'll never break a cast like that on road)

[criket]

^^that's a good idea. Would also check the rest of the casting to see if there are any part numbers or contract numbers from the vendor. Could very well be a lower grade cast since they doubt we'd be using them offroad like this (most CVs that i've replaced at the shop were due to the boots wearing, you'll never break a cast like that on road)

Yea the main reason for informing the manufacture is to inform them of the problem, not to bitch at them. Sorry if I came off like that. They may have had a bad production run that day, materials not mixed well, heat no hot enough, or something else.

At my work, when a customer calls with a complaint, most of the time we give them a credit. I have sometimes sent them a free 40 lb sample of our product to make up for the issue. I'd rather lose $200 of product on a free sample than to lose a customer that buys 2-3 truck loads a week. But that's my point of view.

[TrialByFire]

Wow! How much have the NAPA ones been costing you? Do you happen to have a PN for both sides?

The driver side is: NMD 958415
The passenger side is: NMD 958414

They run about $62 each with a core return ($140 w/o)
The NAPA ones listed as "New" are not available.