This auction is for a NOS master cylinder rebuild kit in perfect condition. Niehoff part # K-1272 ( 1" dia. ). These are NEW factory original " MADE IN THE USA " quality parts in the original factory package. Guaranteed superior quality that meets or exceeds all OEM specifications. Will fit 1974 1975 1976 1977 1978 1979 1980 Chevy 1/2 & 3/4 Ton Pickup Trucks ( C10, C15 ) Series. Also fits 1974-80 GMC 1/2, 3/4 Ton Trucks ( C1500, C2500 ) Series. Combined shipping discounts apply on multiple purchases whenever possible. Questions are always welcome, so don't hesitate to ask. I have been selling on eBay for over 23 years and have a 100% positive feedback rating, so buy with confidence. Also be sure to check out my eBay store for more Vintage & Classic parts, accessories and auto literature. I list a large variety of NOS, NORS and quality used parts every week, so check back often.