
THE AUTO BUILDER
Featured

PRODUCT SPOTLIGHT: Delphi 600 Series Power Steering Upgrade by Borgeson
This upgrade is a perfect match for a range of Ford, Lincoln, and Mercury vehicles, including the 1971-1973 Mustangs and other full-size models from 1965 to 1977. To accommodate the new steering box input shaft, the factory steering coupler must be replaced. This ensures a perfect fit and optimal performance. Borgeson offers hose kits designed for both stock Ford pumps and their Saginaw P/S pump upgrade kits, guaranteeing seamless integration with existing power steering components.

Action Packed
While the factory cast-iron four-barrel Q-Jet intake manifolds have performed admirably on literally thousands of GM applications—and if you are picking your engine from a used lot to use in a swap, it will likely be so equipped—every last one of them should be torn off the car and thrown in the dumpster.

Rearend Upgrade
This article delves into the process of upgrading a ’40 Chevy truck, focusing on swapping the original torque tube differential with a ’69 Camaro axle assembly and enhancing the rear suspension. It provides a comprehensive guide on reusing the leaf springs, installing new bushings, and incorporating a strong shock mount for rear frame strengthening. Essential tools like a bushing removal tool, MIG welder, and an oxy-acetylene torch are highlighted, demonstrating the intricate steps involved in modernizing early Chevy trucks.
Spotlighter
POPULAR READS
Colorado Drop Kit
Story and Photography by Marshall Spiegel
DJM Introduces a Slick 3X4 Chevy Colorado Lowering Kit – Here’s How to Install It
Since its incorporation in 1985, DJM Suspension in Gardena, California, has grown to become one of the leading manufacturers of lowering kits for a wide variety of trucks. The company’s goal has always been to design and manufacture drop kits that help preserve the factory ride quality, and that goal was a big consideration when DJM set out to create a kit to lower the new Chevy Colorado (and the GMC Canyon). The DJM engineers created a 3-inch front drop, based on a specially designed lower control arm, and a 4-inch rear drop, which was achieved with DJM’s new, stronger steel lowering blocks. DJM strongly recommends that its new steel lowering blocks be used on vehicles with high-output engines.
The new 3×4 drop kit turned out to be relatively easy to install. The stock ride height measured 19-1/2 inches in front and 20-1/2 inches in the rear (measured from the center of the wheel to the fender lip). After the installation, the front and rear measured 16-1/2 inches, showing a 3-inch drop in front, and 16-1/2 inches in the rear for a 4-inch drop. At the new ride height, our test 04 Colorado had a ride and handling that seemed nearly as good as when the truck was at the stock ride height, but the new stance was far more aggressive and the looks were much improved.
DJM informed us that the stock shocks would work fine with this new drop kit for those on a budget; but it is recommended that the stock shocks be replaced with higher-quality, high-performance gas shocks to further improve the ride and handling. DJM owner and company president Jeff Ullmann performed the installation himself as we followed along so that we could witness for ourselves just how straightforward the swap is. Our test vehicle is a white 04 Colorado, and the accompanying photos show the highlights of the installation.
Author
TheAutoBuilder Staff
ARTICLE SOURCES
DJM Suspension, Inc.
Dept. TB
580 W. 184th St.
Gardena, CA 90248
800/237-6748
310/538-1538 (Tech)





