URETHANE BUSHINGS AND ALL STEEL BALL JOINTS ARE FINALLY AVAILABLE
An Article by Tom Hall June 1999
|Figure 6. Here we have the Upper arm reassembled except for the upper ball joint. Make sure that you maintain good alignment when reinstalling the new ball joints. Ricks new ball joints are 0.015 larger in diameter that the OEM ball joints. That is because most of the replacements for the last 15 years were made to this oversize dimension. Better to have them tight to install than trying to hold them in a loose hole.|
If you end up with a loose fit, apply Locktite to the cleaned bushing shell before its pressed into place. This the appropriate cure to obtain proper bushing/shell adhesion with loose bushings. Your installation tooling must apply the press force to the rolled lip of the bushing shell. If you simply press on the end of the bushing, damage to the bushing is very likely to occur.
Figure 7. Here is the completed Lower A-Arm and the new lower ball joint. These new ball joints are metal to metal with no nylon inserts that could fail and allow the joint to come apart. This was the design used by the factory OEM supplier back in the 60s.
Figure 8. This is a picture of the proper press setup with tooling to maintain alignment and apply the assembly forces to the bushing shell and A-Arm without distortion. Measure the diameters before you press and choose your tolerances to avoid trying to press more than 0.010 interference. Remember to chamfer the bushing shell to allow an easier start for the bushing you press and choose your tolerances to avoid trying to press more than 0.010 interference. Remember to chamfer the bushing shell to allow an easier start for the bushing.
The remaining photos show some close-ups and details of the bushings and A-Arms and my recommendations for welding to provide permanent attachment of the spin weld tubes to the A-Arm structures. All welding operations are done to the bare, properly cleaned A-Arm structures.
|The Sunbeam Specialties Part numbers for appropriate related suspension parts are as follows:|
|Set of 8 Black urethane (4 upper, 4 lower) bushings||FS-78|
|Set of 8 Red (HP) urethane (4 upper, 4 lower) bushings||FS-78H|
|Lower Ball Joints, each||FS-53|
|Upper Ball Joints, each||FS-57|
|Upper Beveled Thrust Washers (Set of 4)||FS-67|
|Lower Beveled Thrust Washers (Set of 4)||FS-62|
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