Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.040" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Phospate Coated Top Ring H775CA3XXXL Derale 87-06 Wrangler Transmission Cooler

Derale 87-06 Wrangler Transmission Cooler Kit 20561

Each tip is adorned with high-definition

Achilles relief cut for maximum flexibility

Not intended for drag racing

GM A-Body 1973-77 / F-Body 1970-81

Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.040" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Phospate Coated Top Ring H775CA3XXXL Derale 87-06 Wrangler Transmission CoolerAffordable and designed to deliver exceptional performance, piston ring sets include choice of plasma moly or phosphate coated cast iron top rings, reverse twist cast iron second rings, and patented Flex Vent, standard tension oil control rings. Sold in eight cylinder sets. Features: Claimer Cast (C) Series includes top rings made of proprietary shell mold cast iron, phosphate coated, with a torsional top ring. Advantages of cast iron rings include: