So the brackets are the same for either bar according to the parts book and from what I recall when I've put on bigger bars I've never changed brackets.
The bushings are 3943084 from GM, long discontinued. You can find them NOS from time to time but they usually get a good buck. The aftermarket makes the bushing but they don't mold that ridge into the bushing that fits into the groove on the bracket so I suspect they will slowly slide out the side of the bracket. I welded little tabs on the sides of the brackets to prevent that on one of the big bars I installed.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
The brackets are the same regardless of sway bar diameter. The bushings are different.
Moog K5227 for 13/16" bar - readily available,
Moog K8258 for 15/16" bar - difficult to find, but occasionally pop up on eBay.
The brackets are the same regardless of sway bar diameter. The bushings are different. Moog K5227 for 13/16" bar - readily available, Moog K8258 for 15/16" bar - difficult to find, but occasionally pop up on eBay.
Yes but the outside of them is smooth, missing that molded ridge on the outside that fits in the channel in the bracket . Even the GM originals that include the ridge push out of side of the bracket so I'm betting the smooth ones push out sooner/faster. But it's better than nothing!
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
Thanks guys, very good info. Needed a brain reboot on the subject.
Anyone have a part number for a replacement that would work on the 15/16" bar. Rock auto seems to only have a bushing up to .78 ID
On the 67 I just went with A set of Prothane universal greaseable bushings and shells, which required a second hole be drilled either side at the mount.
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65 Laurentian post, 67 Grande Parisienne 4 door HT.
Would work, problem being Robert is that the original bracket holes are offset.
Carls Idea of welding retainer tabs onto the OEM bracket is a good one. But now who has a 15/16 OEM bushing? Even a china one without the retainer bump.
Found these shots on line, a clever fellow simply cut and some 3/16 plate and added them to a straight aftermarket bracket drilling them appropriately offset. I'm not adverse to using greaseable poly in this position.
Would work, problem being Robert is that the original bracket holes are offset.
Carls Idea of welding retainer tabs onto the OEM bracket is a good one. But now who has a 15/16 OEM bushing? Even a china one without the retainer bump.
Found these shots on line, a clever fellow simply cut some 3/16 plate and added them to a straight aftermarket bracket drilling them appropriately offset. I'm not adverse to using greaseable poly in this position.
I forgot that the holes were offset. So much for standardization of the bracket/bushing set up. Changes in parts that could be used across other models, makes no sense to me.
