1937-1957 Buick Oldsmobile Pontiac suspension upgrade
(→General summary) |
(→Key shortcomings of the original suspension) |
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*The brakes are, obviously, inadequate: non-power 4 wheel drums with a single reservoir hydraulic system. | *The brakes are, obviously, inadequate: non-power 4 wheel drums with a single reservoir hydraulic system. | ||
| + | ==Solutions== | ||
| + | Most attempts to gather advice will result in one of two stock answers: Mustang II or GM sub frame. | ||
| − | + | In this application, the standard Mustang II recommendation may be misguided. It can work well on Chevys, however, their straight frame rail makes installation straight forward, and the weight is within specifications. For BOP’s the frame rails are neither flat nor straight. And, there is that built in spring pocket, which requires modification of the frame rails. And, there is still a weight issue. | |
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| − | The | + | The GM sub frame approach is definitely viable, and some would say, the best possible solution. If you have the tools, welding and fabrication skills, and your car is stripped to the frame, it might indeed be your best option. |
| + | If your car is assembled with the engine in and fenders on, your fabrication skills are minimal, or you just don’t like the idea of hacking your frame, this article may apply to you. | ||
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| + | ==Brakes== | ||
[[image:41 frame bump good pic.jpeg]] | [[image:41 frame bump good pic.jpeg]] | ||
| − | + | The brakes on these cars definitely need improvement. That is not only the worst part of these cars, it is the first decision that dictates the path you follow in later steps. | |
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| − | The brakes on these cars definitely need improvement. | + | |
[The information listed here is general in nature and varies from model to model and year to year.] I’m diverting to a brake discussion here, because a decision on brakes determines the spindles you need, and you must have your spindles before you can design your suspension. | [The information listed here is general in nature and varies from model to model and year to year.] I’m diverting to a brake discussion here, because a decision on brakes determines the spindles you need, and you must have your spindles before you can design your suspension. | ||
Earliest models had 1 ¾ by 11 inch brakes with 1 inch wheel cylinders. | Earliest models had 1 ¾ by 11 inch brakes with 1 inch wheel cylinders. | ||
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