A Body Disc Brake Swap 101
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.
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.
