Chevy Silverado C3500 Control Arms Angle After
Chevy Silverado C3500 Control Arms Angle After
When comparing it to the rear wheels, notice how the front and back wheels now sit approximately the same amount inside the fenders.
Chevy Silverado C3500 Control Arms Angle After
When comparing it to the rear wheels, notice how the front and back wheels now sit approxi

With all of the information out there about custom trucks, one of the great mysteries seems to be how to get an ’88-’98 Chevrolet dualie to lay out on a big wheel. There’s a lot of misinformation out there, including one big one about the front spindles. The common misconception is that if you want to tuck a 22-inch dualie wheel up front, just swap out your stock dualie spindles with a set of 3/4-ton spindles and rotors. Then you can narrow the track width and squeeze in that big wheel. The thing is, by installing the 3/4-ton spindles and rotors onto the suspension with stock control arms, you suck in the wheel six inches per side, making turning awkward and giving your big truck a weird appearance. Better yet, the bearings on the 3/4-ton and 1-ton spindles are the same, so you don’t even need to install 3/4-ton spindles—just the rotors.

The crew at Lowboy Motorsports, in Mesa, Arizona, are huge fans of the ’88-’98 Chevys, particularly the dualies. After a few years of playing around with different setups, they decided to do something different and get it done the right way. These are Lowboy Motorsports’ new upper and lower control arms for the ’88-’98 Chevrolet dualies. They’re designed to be used with a 3/4-ton brake rotor, but the new arms are three inches longer than the stock models. This pulls the wheels in three inches per side, which gives the truck a better turning ability when tucking such a big rim, and at the same time, looks natural when compared to the rear wheels. This allows the bigger dualie lugs to fit under the fenders of a body-dropped truck.

Todd Burton, owner of Lowboy Motorsports, had a customer who wanted a bit more clearance with his big rollers. We tagged along and watched Todd build a set of arms from scratch, then install them onto the truck. At the end, the 1-ton handled and drove better than stock.

  • Chevy Silverado C3500 Truckin Dualie Front Side
    1. Although the project truck tucks rim just fine, it won’t after a body drop, and turning sucks. We’re going to fix all that right now.
    Chevy Silverado C3500 Truckin Dualie Front Side
    1. Although the project truck tucks rim just fine, it won’t after a body drop, and turning
  • Chevy Silverado C3500 Truckin Dualie Stock Suspension
    2. Here’s the stock suspension. By just swapping out the rotors, the wheel gets sucked in six inches, which starts to look a bit odd. Don’t worry, Todd has the fix.
    Chevy Silverado C3500 Truckin Dualie Stock Suspension
    2. Here’s the stock suspension. By just swapping out the rotors, the wheel gets sucked in
  • Chevy Silverado C3500 Truckin Dualie Stock Control Arms
    3. Todd started by setting up the stock control arms in a jig and taking a few measurements.
    Chevy Silverado C3500 Truckin Dualie Stock Control Arms
    3. Todd started by setting up the stock control arms in a jig and taking a few measurement
  • Chevy Silverado C3500 Truckin Dualie New Control Arm Jig
    4. Those measurements were then transferred to Todd’s lower control arm jig, which is designed to push out the lower arm three inches to accommodate the narrower 3/4-ton spindle.
    Chevy Silverado C3500 Truckin Dualie New Control Arm Jig
    4. Those measurements were then transferred to Todd’s lower control arm jig, which is desi
  • Chevy Silverado C3500 Truckin Dualie New Arm
    5. Each arm was then bent and coped perfectly to meet up with the specially machined lower cup, which is designed to hold a new ball joint that’s included with the kit.
    Chevy Silverado C3500 Truckin Dualie New Arm
    5. Each arm was then bent and coped perfectly to meet up with the specially machined lower
  • Chevy Silverado C3500 Truckin Dualie Upper Control Arms
    6. The same process was used to make up the upper control arms, which uses a uniball for the upper spindle mount. This required a modification to the stock spindle, where he drilled out the upper mount and tie-rod mount to accommodate a bolt.
    Chevy Silverado C3500 Truckin Dualie Upper Control Arms
    6. The same process was used to make up the upper control arms, which uses a uniball for t
  • Chevy Silverado C3500 Truckin Dualie New Control Arm Kit
    7. Here you can see the new Lowboy Motorsports’ new ’88-’98 dualie upper and lower control arms ready to be bolted on. The kit includes uniballs, bushings, and new heim joint tie-rod ends.
    Chevy Silverado C3500 Truckin Dualie New Control Arm Kit
    7. Here you can see the new Lowboy Motorsports’ new ’88-’98 dualie upper and lower control
  • Chevy Silverado C3500 Truckin Dualie Front Suspension Mock Up
    8. The front suspension was mocked up for the first time (shown here without powdercoat), including the use of the longer tie rod ends included with the kit. The heim joints used on the ends makes the handling tighter and crisper, and the misalignment spacers help provide more travel without binding the tie rod.
    Chevy Silverado C3500 Truckin Dualie Front Suspension Mock Up
    8. The front suspension was mocked up for the first time (shown here without powdercoat),
  • Chevy Silverado C3500 Truckin Dualie Arms Extended
    9. By extending the upper and lower arms, Todd has created a pocket behind the spindle that’s perfect for a shock. The customer wanted to make a custom shock mount, so to make it fit, he fabricated an upper mount out of steel. Then he made a matching lower mount on the lower control arm.
    Chevy Silverado C3500 Truckin Dualie Arms Extended
    9. By extending the upper and lower arms, Todd has created a pocket behind the spindle tha
  • Chevy Silverado C3500 Truckin Dualie Upper Shock Mount
    10. With the upper shock mount welded to the frame, the advantage of the new shock location becomes obvious. Now, the owner doesn’t have to worry about rubbing on the shock when turning and gets a better ride out of it as well.
    Chevy Silverado C3500 Truckin Dualie Upper Shock Mount
    10. With the upper shock mount welded to the frame, the advantage of the new shock locatio
Chevy Silverado C3500 Control Arms Right Side Down Body
11. Once everything was put back together, the finished product looks amazing. The wheels tuck in the front fenders perfectly, but not so much that the fender casts a shadow.
Chevy Silverado C3500 Control Arms Right Side Down Body
11. Once everything was put back together, the finished product looks amazing. The wheels

From the Driver Seat

Prior to installing the new control arms, the truck had a decent ride and functioned well, but the owner couldn’t cruise as low as he wanted to. Changing up to the new kit not only made the truck ride better because of the perfect shock location, but the handling increased substantially as well. Now that’s not to say the truck handled like a Porsche, but things definitely felt tighter and cleaner than they did before the new kit. That’s partially because this kit includes provisions for the stock sway bar, something which not all dropped control arms offer. Shortly after Lowboy Motorsports built this kit, Todd installed another set on his own truck, a ’93 dualie that’s body-dropped on 22s. The wheels tucked hard on the stock fenders with no modifications and cleared the lugs with no problems. It doesn’t get much better than that.

Your Questions Answered
Time Spent Working: 7 hours
Degree of Difficulty: Moderate
Tools Needed: Assorted wrenches and sockets, drill, metal drill bits, and a ball joint press.
Parts Used:
Lowboy Motorsports Dually Control Arm Kit $1,200 shipped
3/4 Ton rotors $61.99
New bearings and seals $34.97
Total: $1,296.96
(prices do not include tax, shipping, or installation)

SOURCE
Lowboy Motorsports
240 East Coury
Suite 101
Mesa
AZ  85210
480-577-5988
www.lowboymotorsports.com