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There is a difference between the base front upper and lower control arms and 1LE ones.
Is it just the bushings, or is it the complete arms.
If it's only the bushings, has someone partnumbers for these 1LE bushings ?
Looks to be right, I have Moogs on my lower A arms.
08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine
The PNs for the 1LE front lower control arm bushings are: 22145392 and 22156434. Those parts are now discontinued.
Moog sells the same parts as a set. Order PN K6490.
Typically, the rear bushings on the front lower arms will not last very long. I've had two sets of them in my 01. The first set went little over 49,000 miles and were totally wasted. I replaced them with Moog 6490z. I still have the two 1LE (FE7) front bushings in my front lower arms and they've been in service for about 55,000 miles and show little wear.
The PNs for the 1LE front lower control arm bushings are: 22145392 and 22156434. Those parts are now discontinued.
Moog sells the same parts as a set. Order PN K6490.
Typically, the rear bushings on the front lower arms will not last very long. I've had two sets of them in my 01. The first set went little over 49,000 miles and were totally wasted. I replaced them with Moog 6490z. I still have the two 1LE (FE7) front bushings in my front lower arms and they've been in service for about 55,000 miles and show little wear.
I ordered a pair of 1LE (FE7) GM p/n 22156434 bushings. They appear to be more solid - still have slots but different than the Moog K6490 bushing. Rubber is harder. Here's a potential issue - the parts bag is p/n 22156434 (dated 2007), but the p/n molded into the bushing is 22156346 !
If you get a alignment they check the bushings by pulling on the wheel to see if it has movement, I forget what clock they pull it like 10 and 2 oclock.
08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine
6&12 for ball joints, 9&3 for tie rods. I do it all day long... also jack it up by the chassis, get ~1" between the tire and the ground, grab a pry bar and pry the wheel up like a bump would. If there's something loose you'll feel it.
Found out upon professional inspection that mine were just fine and my steering rack
has a loose part that was tightened and now everything seems to be fine at no $$ cost.
08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine
How did you figure out they needed to be replaced...was in wondering on the road, vibration...steering response?
I know I'm late to reply and your problem ended up the steering rack but, in the case of the front, lower, rear bushings, mine had visible cracks which made it obvious the bushing was failing/had failed.
The front, lower, front bushing was fine.
The Moogs I used looked just like the failed 1LE bushings I removed. Of course, appearance dosen't mean I'm 100% sure the Moog replacement is a 1LE, but it's some evidence. I suppose you'd have to dig deep into the issue at Moog to find the final answer.
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