Taz
08-07-07, 01:59 PM
First a little background ...
I bought a set of L-5's from DSS more than 2 years ago, when I began assembling parts for some driveline upgrades. This was long before any comments regarding DSS poor engineering and sloppy tolerances began to surface, and the L-5's sat in my garage until this past winter, when I finally got started installing everything. In other words, it was already too late for me buy something else when folks like Jeff (BurnTire) began to have issues with their L-5's, I read their threads on the various message boards with interest, but all I could do by then was hope for the best.
Fast forward to the installation ...
The first issue I had with my L-5's occurred when I began pressing the wheel studs into the hubs. I didn't want to run open lugs, so I picked up some OEM Ford wheel studs to use. They pressed into one of the DSS hubs just fine, but the holes in the other hub were far too large for the OEM studs.
That's when I measured the both the OEM studs and the ARP studs that shipped with the L-5's and discovered that the ARP's had larger knurl diameters. The ARP studs fit the DSS hub with the larger stud holes just fine, but I seriously doubt that I could have installed them in the hub with the smaller holes.
I contacted Frank at DSS about the mismatched stud holes, and he replaced both hubs after a number of email messages and phone conversations. (This was toward the end of last year.) The stud holes in both new hubs were sized for the ARP wheel studs, so the OEM studs wouldn't work, but I discovered that Moser makes a set of wheel studs that are the same thread and length as the stockers, but with the correct knurl diameter for the DSS hubs. I bought a set of those, and they pressed in fine.
Everything appeared to fit perfectly when I finished installing the L-5's along with various other driveline upgrades. The hub diameters appeared to be within tolerance specs, and the hubs fit snugly when pressed into the bearings. I torqued the axle nuts to 240 lb-ft, just to be on the safe side, and called it good. That was then.
Fast forward to the present ...
The Cobra isn't a daily driver, and I've put only 1300 miles on the clock since installing the L-5’s. But I recently noticed some noise coming from the rear end. Since the noise was more pronounced when I put a lateral load on the car, the first possibility that came to mind was wheel bearings.
I put the car in the air and shook both wheel/tire assemblies. Sure enough the driver side was loose enough to clunk when I shook it back and forth. Bummer. I retorqued both axle nuts to 240 lb-ft. (Although only the driver side made any clunking noise, both sides had loosened up.)
Now for the big question: is this the end of it, or are the L-5’s going to continue to self-destruct. Also, if they’re going to keep eating up the bearings, how long do I have before I need to seriously consider replacing them?
I’m really disappointed that I’ve spent a gruntload of shekels for what were supposedly the stoutest half-shaft/hub assemblies on the market only to have them begin to self-destruct after just 1300 relatively easy miles. That just isn’t right.
I’ve been taking it really easy on the car since the driveline upgrades, because of all the new parts that I installed. But I want to be able to get back into driving some open-track in the not too distant future. Unfortunately, I just don’t see how I can do that now without worrying about having to make the trip home on the back of a flatbed.
Jeff, how did you resolve your issues with your L-5’s???
I think I remember reading that you have subsequently switched back to the stock Terminator hubs and half-shafts. Is that true? Is that my best course of action, as well?
Do I have a prayer of recouping any of my hard-earned money, considering I bought the DSS parts in 2005, despite the fact that they have seen less than 1500 miles??? I suppose this sort of experience is what prompted the old Romans to come up with the admonishment, “Caveat Emptor!” Except, I don’t think they had any Cobra model chariots. Carroll Shelby isn’t THAT old. LOL!
Any/all suggestions will be appreciated.
Thanks
:gloomy:
I bought a set of L-5's from DSS more than 2 years ago, when I began assembling parts for some driveline upgrades. This was long before any comments regarding DSS poor engineering and sloppy tolerances began to surface, and the L-5's sat in my garage until this past winter, when I finally got started installing everything. In other words, it was already too late for me buy something else when folks like Jeff (BurnTire) began to have issues with their L-5's, I read their threads on the various message boards with interest, but all I could do by then was hope for the best.
Fast forward to the installation ...
The first issue I had with my L-5's occurred when I began pressing the wheel studs into the hubs. I didn't want to run open lugs, so I picked up some OEM Ford wheel studs to use. They pressed into one of the DSS hubs just fine, but the holes in the other hub were far too large for the OEM studs.
That's when I measured the both the OEM studs and the ARP studs that shipped with the L-5's and discovered that the ARP's had larger knurl diameters. The ARP studs fit the DSS hub with the larger stud holes just fine, but I seriously doubt that I could have installed them in the hub with the smaller holes.
I contacted Frank at DSS about the mismatched stud holes, and he replaced both hubs after a number of email messages and phone conversations. (This was toward the end of last year.) The stud holes in both new hubs were sized for the ARP wheel studs, so the OEM studs wouldn't work, but I discovered that Moser makes a set of wheel studs that are the same thread and length as the stockers, but with the correct knurl diameter for the DSS hubs. I bought a set of those, and they pressed in fine.
Everything appeared to fit perfectly when I finished installing the L-5's along with various other driveline upgrades. The hub diameters appeared to be within tolerance specs, and the hubs fit snugly when pressed into the bearings. I torqued the axle nuts to 240 lb-ft, just to be on the safe side, and called it good. That was then.
Fast forward to the present ...
The Cobra isn't a daily driver, and I've put only 1300 miles on the clock since installing the L-5’s. But I recently noticed some noise coming from the rear end. Since the noise was more pronounced when I put a lateral load on the car, the first possibility that came to mind was wheel bearings.
I put the car in the air and shook both wheel/tire assemblies. Sure enough the driver side was loose enough to clunk when I shook it back and forth. Bummer. I retorqued both axle nuts to 240 lb-ft. (Although only the driver side made any clunking noise, both sides had loosened up.)
Now for the big question: is this the end of it, or are the L-5’s going to continue to self-destruct. Also, if they’re going to keep eating up the bearings, how long do I have before I need to seriously consider replacing them?
I’m really disappointed that I’ve spent a gruntload of shekels for what were supposedly the stoutest half-shaft/hub assemblies on the market only to have them begin to self-destruct after just 1300 relatively easy miles. That just isn’t right.
I’ve been taking it really easy on the car since the driveline upgrades, because of all the new parts that I installed. But I want to be able to get back into driving some open-track in the not too distant future. Unfortunately, I just don’t see how I can do that now without worrying about having to make the trip home on the back of a flatbed.
Jeff, how did you resolve your issues with your L-5’s???
I think I remember reading that you have subsequently switched back to the stock Terminator hubs and half-shafts. Is that true? Is that my best course of action, as well?
Do I have a prayer of recouping any of my hard-earned money, considering I bought the DSS parts in 2005, despite the fact that they have seen less than 1500 miles??? I suppose this sort of experience is what prompted the old Romans to come up with the admonishment, “Caveat Emptor!” Except, I don’t think they had any Cobra model chariots. Carroll Shelby isn’t THAT old. LOL!
Any/all suggestions will be appreciated.
Thanks
:gloomy: