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Regulating Road Irregularities typography
Or, the Importance of Sway Bars & Classic Trucks
1954 Chevy Bel Air in garage
BY Rob FortierPhotography BY The Author
I

remember back in the early ’90s when I had my 1954 Chevy Bel Air airbagged (modified stock suspension). Despite being overly impressed with having the ability to drop it on the ground when parked, I wasn’t as impressed with the ride quality when it came to cornering—and for quite some time, I’d attributed the extreme amount of “body roll” with the side-to-side air pressure transfer between the ’bags. Well, that was partially true.

Over time, as the air suspension systems evolved in my vehicles, I was able to notice a bit of improvement, but nowhere near the performance of any static-dropped car or truck I owned at the time. Again, I automatically placed blame on the ’bags … that is until I realized the one (main) component missing from the air suspension setups: a sway bar.

In order to make full use out of a typical airbag’s travel range back then, the traditional endlink-style sway bar was eliminated, as it severely limited the air spring’s range of inflation/deflation. Since then, technology has advanced, torsion arm–type antiroll bars have become more popular, and air suspension is nothing like it used to be.

But, surprisingly, there are still a number of classic trucks out there—on the road—that don’t utilize any type of sway bar at all … on adjustable and fixed-height suspensions! Just because a truck doesn’t look like a sports car, doesn’t mean it can’t/won’t handle like one. The first step to achieving that is facilitating a good, beefy sway bar. Quality adjustable shocks alone just won’t cut it—to keep your truck’s body roll and under/oversteer to a minimum, a sway bar is a must!

Whether your truck still has a parallel leaf beam axle beneath the front or an IFS, it can—and should—have a sway bar under there, too, even if it didn’t come factory equipped with one. And, if at all possible, throw one on the rear suspension as well! When it comes to the venerable 1967-1972 C10 series, Classic Performance Products (CPP) not only makes it easier than ever, they’ve gone to the trouble to develop sway bar applications for stock-height and lowered trucks—and installation is a breeze, as you’re about to see.

11/4-inch front sway bar for 1963-1987 Chevy/GMCs
1. Classic Performance Products’ (CPP) 1¼ front sway bar for 1963-1987 Chevy/GMCs is available for both stock suspension as well as their Totally Tubular control arms, which we just happen to be using here. Also, CPP offers a billet sway bar mount upgrade (we stuck with the standard D-bushing mounts supplied).
forward radiator core support crossmember rivet being removed
2. While technically this is a “bolt-on” deal, if your 1967-1972 C10 did not come factory equipped with an antiroll bar, you’ll need to perform one minor modification: removal of the forward radiator core support crossmember rivet (arrow).
sway bar closeup
bushing mount placement closeup
3-4. Just to make absolutely certain of your sway bar bushing mount placement, first install the bar’s endlinks in the control arms, followed by the sway bar itself. If you need to, support the bar with a strap or clamp.
supplied suspension bushing grease closeup
D-bushings being installed
5-6. Using the supplied suspension bushing grease, lube the D-bushings and install as shown, with the taller portion of the kickup toward the rear. (Use the correct brackets for your application: taller for stock-height suspension, shorter for lowered.)
the sway bar mount being located
7. Now, in order to properly locate the sway bar mount, you’ll need to load the suspension—meaning, lower the truck on the ground with the wheels installed, as shown.
endlinks perpendicular
8. With the endlinks perpendicular, locate and mark the mounting position for the bracket.
forward rivet closeup
LOUD—air chisel removing the rivet
9-10. Our locating confirmed the forward rivet as our rear mounting hole, so we took to our trusty—and LOUD—air chisel and made quick (and safe) removal of said rivet.
the suspension loaded for safe measure and ease of install
the remaining rivet hole drilled
11-12. With the suspension loaded once again (for safe measure and ease of install), the remaining rivet hole was chased with a drill and the bracket/bushing installed.
the D-bushing zerk fittings being installed
13. Don’t forget to install the D-bushing zerk fittings—and if you happened to forget to grease the bushings in the first place, now’s the time to do so!
antiroll bar equipped
14. All said and done, our 1969 C10 is properly antiroll bar equipped—in the front, that is … now to do the same in the rear.
rear suspension sway bar
15. For the rear suspension, CPP offers sway bars for 1960-1972 coil and leaf spring applications, as well as for their Totally Tubular trailing arms, which again is exactly what we’re working with.
a two-man job done on the front
D-bushings with the included two-piece bracket closeup
16-17. Definitely a two-man job, as with the front, you’ll want to pre-assemble and install the D-bushings with the included two-piece bracket. Leave the connecting U-bolts loose so as to allow the bar to be positioned when locating the forward endlinks. (This kit points the sway bar forward.)
truck back on all fours with suspension loaded
18. With the truck back on all fours (suspension loaded), install the endlinks along with the included L-shaped bracket; with the bar parallel to the ground and the links at 90 degrees, mark and drill a mounting hole in the framerail and secure hardware.
endlinks and brackets in place and tightened
19. Once the endlinks and brackets are in place and tightened, square up the bar on the trailing arms and tighten the U-bolts securely. Now, give your truck a good road test and feel the huge handling difference a set of sway bars makes! You can thank us later!

 SOURCES

Classic Performance Products
(866) 882-6882
classicperform.com
Jimenez Bros. Air Ride & Rod Shop
(951) 343-5948
jimenezbrosairrideandrodshop.com