The clutch system on most late-model vehicles use a plastic clutch hose that is tough to modify when doing an engine swap. The OE plastic hose can expand and may not work correctly in high heat, high pressure, or with a racing clutch. These special stainless steel adapter fittings works with most late-model master cylinders, hydraulic clutch release bearings, and slave cylinders. The plastic OE hose is eliminated and replaced w/ PTFE lined AN -4 hose (use Earls Speed-Flex hose). Use (2) adapters when using both the OE master cylinder and hydraulic release bearing (or slave cylinder). Use (1) adapter for custom clutch plumbing systems that use either OE master cylinder or OE clutch release bearing (or slave cylinder). Check your OE hose and choose an Early or Late style adapter. Sold Individually. Fits: Most 2005 & Up Ford, Most 2010 & up GM Vehicles, and Most 2007 & Up Jeep/Mopar Vehicles. Also fits many other Late Model Vehicles. Retained by C-Clip.