1937-1957 Buick Oldsmobile Pontiac suspension upgrade
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The third spindle is the 65-70 Chevy drop spindle from CPP (Classic Performance Products). It is their own in house design and is very close to the dimensions/configuration of a Pontiac spindle. I had to trim the ears off the front side of the lower A frame, but that was a minor modification. | The third spindle is the 65-70 Chevy drop spindle from CPP (Classic Performance Products). It is their own in house design and is very close to the dimensions/configuration of a Pontiac spindle. I had to trim the ears off the front side of the lower A frame, but that was a minor modification. | ||
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Here is where I appreciated the bolt in mock up. The dropped spindle from CPP was almost 2 inches longer than the stock spindle. Not a problem, in fact they say the longer spindle gives move stability. But the longer spindle changed the geometry and I had to reset the location of the upper control arm mounts. Glad it wasn’t welded in at this point. | Here is where I appreciated the bolt in mock up. The dropped spindle from CPP was almost 2 inches longer than the stock spindle. Not a problem, in fact they say the longer spindle gives move stability. But the longer spindle changed the geometry and I had to reset the location of the upper control arm mounts. Glad it wasn’t welded in at this point. | ||
Note: CPP’s drop spindle is available alone, or in a disc brake kit. Be sure you get the CP30101 spindle. It has no steering arms built in. Stock spindles are front steer and won’t work. With the CP30101 you can just add a pair of 65-70 stock arms. Flipped over they fit your rear steer perfectly, even the taper is the right direction. Unlike the 63 Pontiac arm in the article, the Chevy arms are pretty straight. I only needed to shorten my tie rods less than an inch, rather than the 3 inches in the article. I got there by trimming a little off both the inner and outer tie rod threads and the sleeve. No cutting and welding. | Note: CPP’s drop spindle is available alone, or in a disc brake kit. Be sure you get the CP30101 spindle. It has no steering arms built in. Stock spindles are front steer and won’t work. With the CP30101 you can just add a pair of 65-70 stock arms. Flipped over they fit your rear steer perfectly, even the taper is the right direction. Unlike the 63 Pontiac arm in the article, the Chevy arms are pretty straight. I only needed to shorten my tie rods less than an inch, rather than the 3 inches in the article. I got there by trimming a little off both the inner and outer tie rod threads and the sleeve. No cutting and welding. | ||
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