Diagrams and text detailing rear axle modification for a car

SHOE Ill SURPRISE 8-9. LEFT 5. RIGHT After taking a measurement off the Mustang II spring pad retaining pins, Boughn came up with a width of 43-inches center to center. This measurement is then transferred to the new axle to obtain proper spring pad placement. his 10'". ABOVE Prior to welding Warren sea up the new rear three degrees up to achieve the correct pinion angle using a pair of angle nders. use The angle finders are available at quality tool cuties including. After obtaining the proper pitch," the pads are welded into place first on the outside, and then on the inside. HE? 12'1. ABOVE This step is necemry only if you plan to incorporate quad shocks. It so, you'll have to cut away approximately Vz-inch from the inside of the bracket to clear the inner ubolt. A Elia-inch steel gusset plate is then welded into place at a 15 degree angle. Refer to the full-size template in this article. as hard as it sounds. Particularl} ince weve included a full scale template for you to follow. After removing the 88s factory brackets, its necessary to measure the spring retainer pins on your leaf springs. On the Mustang II, you should come up with a measurement of 43 inches center to center. You then use this measurement to correctly place the spring pads provided in the kit. However, exercise caution here In order to obtain the correct rear pinion angle, (three degrees up) Boughn recommends using an angle nder. These instru- 32 MUSTANG ILLUSTRATEDDECEMBB 1990 ments are in-expensive, and are avail- able at a number of different places. Boughn recommends welding the new spring pads inside and out to les- sen the chance of their coming loose. However, be careful not to get the axle housing too hot (if youre using a MIG set it on the highest amp setting of low range approximately 100 amps). The last thing you want to do is warp the housing. If the housing is warped youll have to replace axle bearings, gaskets and seals on a regular basis, or take the entire assembly apart and have it straightened. After welding on the spring pads. few minor modications will need be performed prior to installatic First, it will be necessary to weld 5 new brake line clamp attachmen (Boughn recommends using a pair 14inch bolts) since the brake lin were originally secured to the contr arm brackets which you removed. this instance, it was also necessary ,, install a new axle breather cap. lbyo . makes a really neat one (p/n 9093; 03031) that sells for ve dollar Finally, its necessary to replace t; original Mustang II spring locat