A Body Disc Brake Swap 101

Swinger 340 said

Thanks for your input, S cuder. I have ordered a set of tie rod boots with same pin (.59) and Base (1.61) from that app., but they are not upper control arm boots. They will be arriving next week. Hope they will be better than nothing. Just want to keep the dirt out of the bushings and the grease off the rotors.

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I bought some upper ball joint boots on ebay whose seal measures 1.75" inner diameter. They fit the 1973 and later ball joints perfectly. This is on the left. It will fit over the earlier ball joint, but doesn't seal snugly around the rim. The boot on the right is from an old stock 1972 and earlier Moog K704 and measures 1.6". Maybe use a Prothane from the list under the replacement rubber eBay piece?

New Replacement Rubber Ball Joint Boot for Moog K6145T Style Ball Joints | eBay



Another possible solution is to order low price ball joints from Rock Auto. The SKP SK704 sells for $4.86, and the boots look pretty decent. Better than the Prothane ones do anyway, because they have the rim around the bottom to help seal. It seems wasteful, but it could be the best option. The one thing I'd want to know is if they guarantee the picture matches the product. If not, you'd be taking a chance.