upper control arm shafts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

454HO · 06-28-2005, 01:09 PM

Moog lists two different upper control arm shafts for '73-'87. One is straight like original, and the other is a 'problem solver' which has an offset built in to increase positive camber. In what cases would you need the problem solvers? Are these mainly used with lowering springs? If you use the problem solvers with completely stock front end, will there be so much positive camber it can't be taken out by removing shims?

The reason I ask is that I bought a set of straight shafts through mail order. But I ended up getting one of each. Now I'm trying to decide which to keep and which to send back. I will be using BellTech 3" drop spindles with stock springs and control arms.

454HO · 06-29-2005, 11:06 PM

ttt

Does anybody know anything about these Moog shafts?? Would a picture help?

boxrodz · 06-30-2005, 01:15 AM

You're right. A few must use these offset UCA shafts to correct the camber after installing dropped springs. They have no more room for shims to correct the alignment. I tend to think that they added something like 1.5* camber, but I'm not sure.

If you're not using too many shims now and don't plan on installing dropped spring in the future, I'd go with straight shafts.

454HO · 06-30-2005, 10:38 AM

Thanks boxrodz. I'll pick up another straight shaft locally and send the offset one back.

06-28-2005, 01:09 PM	#1
454HO Registered User Join Date: Apr 2005 Location: Austin, TX Posts: 1,224	upper control arm shafts Moog lists two different upper control arm shafts for '73-'87. One is straight like original, and the other is a 'problem solver' which has an offset built in to increase positive camber. In what cases would you need the problem solvers? Are these mainly used with lowering springs? If you use the problem solvers with completely stock front end, will there be so much positive camber it can't be taken out by removing shims? The reason I ask is that I bought a set of straight shafts through mail order. But I ended up getting one of each. Now I'm trying to decide which to keep and which to send back. I will be using BellTech 3" drop spindles with stock springs and control arms. __________________ - Greg

06-29-2005, 11:06 PM	#2
454HO Registered User Join Date: Apr 2005 Location: Austin, TX Posts: 1,224	ttt Does anybody know anything about these Moog shafts?? Would a picture help? __________________ - Greg

06-30-2005, 01:15 AM	#3
boxrodz Until Seventy Times Seven Join Date: Feb 2005 Location: Rocky Mountain Front Range Posts: 1,301	You're right. A few must use these offset UCA shafts to correct the camber after installing dropped springs. They have no more room for shims to correct the alignment. I tend to think that they added something like 1.5* camber, but I'm not sure. If you're not using too many shims now and don't plan on installing dropped spring in the future, I'd go with straight shafts. __________________ boxRODz 1983 C10 SWB Fleetside When two halves is gone, there's nuthin left. Two nothings is nuthin. That's mathematics son. You can argue with me but you can't argue with figures. Two half nothings is a whole nuthin...

06-30-2005, 10:38 AM	#4
454HO Registered User Join Date: Apr 2005 Location: Austin, TX Posts: 1,224	Thanks boxrodz. I'll pick up another straight shaft locally and send the offset one back. __________________ - Greg

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