Tubular arms are constructed of 1 1/4" diameter .120" wall steel tubing, which offers increased strength over other designs and also has the added advantage of lighter weight. 122. Simply replace the slug with different combination of offset slugs. Has boxed lowers, adjustable uppers , stock springs and shock. $ 599.95. JavaScript is disabled. Changes in the height of the front of the trailing arm as small as a 1/4-inch can be felt by the driver. Has a 1/4 hole on bottom to allow bolting to your weight jack bolt. When you add more horsepower, bigger and stickier tires, and start pushing the car, then the flex in these arms becomes even more apparent. These stamped metric style control arms are great replacements for twisted or worn out rear upper arms on your GM G-Body. You can lengthen or shorten the bar by loosening the jam nuts on either end and turning the adjuster. With adjustable trailing arms (rather than the factory originals), you can adjust the pinion angle by simply changing the length of the upper trailing arm. what wold be the best angles to be at for most foward bite along with handling four all four links ? AA-175-D. Most often, the factory trailing arms are simply a stamped metal arm. Tuning With Rear Steer Decrease the Pre-Load on the Front Stabilizer Bar. The stock trailing arm mounting kit (part No. "Rear steer helps the driver get the rear end around on dry, slick tracks without having to break the rear tires loose," said Garrison. Ben from AFCO Racing is an expert in multiple aspects of race cars including cooling and set up. Wehrs Body Bolt Panel Inserts. The separate rod end spacers act as bushings that allow the arms to fit inside the factory trailing arm pockets. From a structural standpoint, tubular trailing arms are much stronger than factory trailing arms. Conversely anti-dive is used to describe how much a chassis nose dives under braking. One of the things we have done, is to raise the rear ride height. I am setting up a GM A body 1972 Monte Carlo. * upper control arm angled down from ball joint to pivot at 1.4 degrees. As the rear corners of the car move, along with the controlling arms that locate the rear-end fore and aft, each side can move the wheel on that side forward or to the rear. With so much movement, we can plan out our rear steer just about any way we need it. My trailing arms are stock triangulation. $64.00. This condition may to be loose. and the right coil-over unit behind the axle. LR bracket is 7 from axle tube to center of bottom hole, but still conforms to the 7.5 max length rules. The RR lower most will run level. West Coast Metric - Suspension Parts, Front & Rear. MAXIMUM Performance right side climbing panhard mount for Ford 9 rear ends. corners. - Trailing Arm Brackets - Bushings in Upper Mounts - Brake Caliper Mounts (GM Metric) . how the shortened bottom link pulls the bottom of the right side Following the anti-roll bar, you can use adjustable shock absorbers (front and rear), front suspension limiters, and to a lesser degree, specific coil spring rates to get the car to hook up. They are angled to fit GM Metric chassis and have four holes for racers to adjust their trailing arm position. These arms fit 1978-87 GM G-body cars (Malibu, Monte Carlo, Regal, Cutlass, Grand Prix). Tack weld the slugs to secure them to the trailing arm. "We have always wanted rear steer," he said. When the rear links are too short forward bite and #2. pat the angle of the trailing arm wont really effect anything that much. I highly recommend that if your wanting to run coil-overs or something of the sort or long travel that you use a 0 degree dual pivot trailing arm i use it in the designing of all my frames and i think its better for more wheel travel. These new Superior 28 or 31-spline axles feature screw in studs in a 55 wheel bolt pattern, , thick heavy duty bearing retainer plates, and tapered wheel bearings pressed on. The Asphalt 3-Link - The 3-link rear suspension system has two trailing arms mounted near the rear tires, and one third link mounted atop the rear differential that controls rear end wrap-up. birdcages, to rotate against the shocks and springs during (and tire) are forced towards the race track. The left-rear shock mostly seems to move between 1/2-inch in rebound and up to 1/2-inch in compression during the entire lap. Raise the Rear Panhard Bar Up on both sides. As the left side of the car travels up, the front of both of the trailing arms are angled upwards so that the left-rear tire tries to drive up under the chassis, loading the left-rear tire considerably. That thought echoed Garrison's point of keeping the rear tires connected to the ground going in and through the middle, helping to provide traction off the corners. Many of todays very successful Pro Stock drag cars have instant center locations very similar to cars with triangulated four-links. We can reduce loose roll steer further by lowering the The right-rear shock shows from 3 to 4 inches or more of travel, depending on the spring rates used. If its working correctly, a G Body will drag the back bumper on the track with those pieces, on small drag radials. We also talked with Sandy Goddard of Warrior Race Cars and he said his group of racers work with rear steer less than some other dirt teams, although he feels that using a degree of rear steer is very important at times. note the left rear tire moves to the front in body roll. However, keep in mind that chassis roll causes the link angles to The trailing arms can be mounted parallel to the centerline of the car, or angled with the front mounts closer to centerline. Realize that you can increase forward bite on any type of rear Currently 4/5 Stars (1) Description: In Stock Item #: 131-129. Suspension movement usually increases when the coil-over units are Made out of 1/2 thick steel to gain extra LR weight. and the angles to which the links are adjusted. If you have a Fox-body or SN95 Mustang, a 1980s GM G-body (Grand National, Malibu, El Camino, etc.) Heres a look at an adjustable upper trailing arm fitted to a GM G-body. Mike Kojima says: July 15, 2019 at 4:38 pm . Their offerings include rod ends, spacers, bushings, clamps, brackets, and mounting hardware for a number of items, from shocks, to brakes, to fuel cells. are used to help control loose steer. This saves wear and tear on your U-joints while . Lower the front LR trailing arm mount. Please Login or Register. Spring Motion Ratio is at ride height. Wehrs Body Braces. Suspension Division. The idea is to trace the paths actually The upper trailing arms are pretty much in the stock location. The Setup with Shane Tesch Topic - Center Pull #shorttrackracing #metalfabricator #latemodelstockcar #metalfabrication #chassisfab #stockcar #metalfab #motorsports #portcityracecars #superlatemodel #chassis #racecar #asphaltracing #pavementracing #racingparts 4AN To for 8mm X 1.0 Metric Straight Adapter Vibrant. AA-175-B) are constructed from stout 5/8-thick steel. Photo courtesy of BMR. I was looking for more info on stock rear 4 link trailing arm angles. My rear end is a nine inch ford with the large pinion. the right side Here is how each system functions and how they can be adjusted for the "degree" of rear steer. Cf: a c t i v i t . Adaskaveg got his start working for track photographer Lloyd Burnham at Connecticuts Stafford Motor Speedway in 1970. Again the height of the mounts are critical as to the resultant force transmitted. Our services include: Bushing overhauls, suspension repairs . Its on a car that Im helping with. During chassis roll, trailing arm/s mounted upwards will cause the right or something like an early Chevelle or a GTO, it has a triangulated four-link rear suspension. The Z-link System The problem with some trailing arms made for Mustangs and GMs A- and G-bodies is they tend to create a very short (further from the engine) instant center by changing the angle of the bars. Dirt Rear Steer It consists of a regular trailing arm and two links for controlling the camber throughout the suspension travel and for carrying the lateral loads. We've The condition is referred to as See the text for more information. Which ones do you recommend? A 200-pound spring in a Z-link car feels more like a 4-link car, where the coilover is mounted to a birdcage with a 100-pound spring installed. if u could move trailing arm mount on chassis with the uppers as close to the rearend housing as can get and the lowers 2.5 away from housing. 2- 175-C bushing for upper mounts. Below you'll find a selection of our flight destinations to spark your interest. Metric 4 Link Setup For Dirt steve smith autosports tech tips, the home of the jet mod and jet phantom the championship dirt track modified and stock chassis offering a full inventory of high performance racing parts racing safety equipment racing components and more lf 5 1 2 rf 5 3 4 lr 6 rr 6 1 4 our setup manual is the most in depth mod . Dave's Tip - "You should always tack weld them in place. Any of you guys changed any angles on trailing arms etc on a metric to make it faster? Unbolt and remove one upper rear control arm using a " wrench. This arrangement: * puts the instantaneous center 199 inches from center of car. Has gone 1.29 60 ft on spray, has 28 10.5 et street tires on it also. These new Currie 31-spline axles feature press in studs in a 54 3/4 wheel bolt pattern, , thick heavy duty bearing retainer plates, and tapered wheel bearings pressed on. A racer himself, he was the winner of the Street Stock Nationals in 2019. We usually need to position the angle of the trailing arm so that the front mount is higher than the rear mount by roughly one third of the distance that the front mount will move down during cornering. the left rear tire to move forward. My car had 7Deg of angle it. 4. Keep in mind that trailing arm angles can become move the The lower links are angled from a top view with the front pivots narrower than the rear pivots. 4.0 drop trailing arm brackets slotted to accept offset slugs. wenee9w Pit Crew. $15.75. These conditions call for a driving line that is more straight ahead. shocks and springs. Hes authored five how-to books and written over 4,500 tech articles that have appeared in sixty different high performance automotive, motorcycle and aviation magazines worldwide. A trick way to produce rear steer only under acceleration is by staggering the height of the two trailing arms in the 3-link system when using a pull bar, upper-third link. Indexing is greatest when there is a lot of He uses his knowledge as a racer to continue to innovate his chassis designs. this important function of the lower links. The company also sells ultra-lightweight rear spring cups (see Rear Spring Cups from A&A Holidays Wish List). An anti-roll bar can also be mounted on the rear axle housing. Rayburn of Rayburn Race Cars, a driver as well as a car builder, echoed much of what the other buiders had to say. Reply. The Impala spindles are the " hot set up " on a metric chassis. Any of you guys changed any angles on trailing arms etc on a metric to make it faster? I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. Since drive line angles can change if you adjust your ride height, your pinion angle may need to be adjusted.
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