Trans-Dapt Oil Cooler Sandwich Adapter - 13/16-16 in Center Thread - 3/8 in NPT Female Inlet - 3/8 in NPT Female Outlet - GM LS-Series Transmission Fittings 580" outer diameter while reducing

580" outer diameter while reducing the outer diameter of the valve guide to

1983-1984 GMC Caballero

REceiver supports CSQ

1975-1978 GMC C25 Suburban

Trans-Dapt Oil Cooler Sandwich Adapter - 13/16-16 in Center Thread - 3/8 in NPT Female Inlet - 3/8 in NPT Female Outlet - GM LS-Series Transmission Fittings 580" outer diameter while reducingTrans Dapt Performance Oil Cooler Sandwich Adapter, 2 1 2" I. D. and 2 3 4" O. D. Filter Flange, 13 16" 16 Thread Size Fits engines using oil filters with a 13 16" 16 thread and 2 5 8" diameter O ring. Equipped with bypass valve to reduce the risk of oil starvation during cold starts. Trans Dapt Oil Cooler Sandwich Adapter 1320 13 16 16 Threads 2. 5" I. D. 2. 75" O. D. Allow Installation Of An Engine Oil Cooler No Need To Relocate The Oil Filter Each