PROPORTIONING VALVE CLASSIC BRAKE HIGH PERFORMANCE REPLACEMENT FULL SIZE TRUCKS DISC DRUM for ALL 1978‑1987 2WD 4WD 1/2 Ton, 3/4 Ton, 1 Ton P30 Chassis Frames (Copper)

[PRECISE FITMENT] Replacement for ALL 1978‑1987 Full Size trucks with disc front and drum rear brakes. Compatible with 2WD, 4WD, 1/2 Ton, 3/4 Ton, 1 Ton, even P30 Chassis Frames.[OEM NUMBER REFERENCE] OEM Numbers: 172‑1350 172‑1353 172‑2187 172‑2174 172‑1364 172‑1363 172‑2215. Double-check your part number for accuracy.[HIGH PERFORMANCE] Ensures proper fluid transfer and includes a pressure valve for optimal braking, enhancing driver and vehicle safety.[5 PORT VALVE] Features a 9/16in‑18 port for rear brakes and dual 3/8in‑24 ports for front brakes. Master cylinder connections at 1/2in‑20 and 7/16in‑24, suitable for left, right, or bottom mount.[DIRECT REPLACEMENT] Easy installation as a direct replacement valve without any modification required. No need to cut wires, includes the correct switch for convenient use.Spec:Item Type: Proportional ValveMaterial: ABS + MetalOEM: 172-1350 172-1353 172-2187 172-2174 172-1364 172-1363 172-2215The valve has 9/16in-18 connection for Rear Brakes and Dual 3/8in-24 ports for the front brakes. The connections from the Master Cylinder are 1/2in-20 and 7/16in-24.Fitment:Replacement for ALL 1978-1987 Full Size trucks that have disc brakes in the front and drum brakes in rear. 2WD 4WD, 1/2 Ton, 3/4 Ton, 1 Ton Even the P30 Chassis Frames.Package List：1 xProportional ValveNote：1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!

• [PRECISE FITMENT] Replacement for ALL 1978‑1987 Full Size trucks with disc front and drum rear brakes. Compatible with 2WD, 4WD, 1/2 Ton, 3/4 Ton, 1 Ton, even P30 Chassis Frames.
• [OEM NUMBER REFERENCE] OEM Numbers: 172‑1350 172‑1353 172‑2187 172‑2174 172‑1364 172‑1363 172‑2215. Double-check your part number for accuracy.
• [HIGH PERFORMANCE] Ensures proper fluid transfer and includes a pressure valve for optimal braking, enhancing driver and vehicle safety.
• [5 PORT VALVE] Features a 9/16in‑18 port for rear brakes and dual 3/8in‑24 ports for front brakes. Master cylinder connections at 1/2in‑20 and 7/16in‑24, suitable for left, right, or bottom mount.
• [DIRECT REPLACEMENT] Easy installation as a direct replacement valve without any modification required. No need to cut wires, includes the correct switch for convenient use.