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1stpower-tech provide front Upper Control Arms (UCA) for Chevy, GMC, Ford, Dodge, Toyota, Nissan, Jeep and other trucks.

The UCAs are CNC Bent Tubing, CNC Machined Bushing Housings and Sleeves. Usually, when you lift 2 "or more of your truck, OEM control arm would limit suspension travel,which will impact the driving performance.

1stpower-tech upper control arms will solve the problem, which is designed for 2-4" lift.

Designed for vehicles with 2 to 4 inches of front lift
Included 2 upper control arms, 8 Poly Bushings, 4 sleeves, 4 zerks and lubrication
Lifetime warranty for tubular arms and one year for ball joints and bushings

Picture 2 of 5 Chevrolet 
2000-2010 Silverado 2500 HD 8-Lug
2000-2010 Silverado 3500 HD 8-Lug
GMC
2000-2010 Sierra 2500 HD 8-Lug
2000-2010 Sierra 3500 HD 8-Lug

Picture 3 of 5Maintain stock ride quality
Polyurethane bushing for driving performance and longer service life.
Constructed from 1.25" DOM tubing for superior strength and durability
High quality dust cover of ball joint supply longer service life
Corrects geometry for proper alignment and improved handling
Powder coated finish
Ball joint and bushing parts can be replaced

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All the zerks can fill in grease after some use (pre-greased when you get it)
Zerk just a decoration, sealed and pre-greased, so do not try to fill in anymore, otherwise you will damage it
Do not torque the zerk too tight and It can turns to different directions(not must vertical)---the right and left zerks no need to the same directions
The ball joint - we will provide a free replacement of the ball joint within 12 months;
when you buy it,you could communicate with us,we will provide you with detail product information.and we will help you check if our products fit for you car model.
2001 chevy silverado 2500 hd upper control arm
2004 chevy silverado 2500 hd upper control arm