Brand-new solid brass discontinued new-old-stock genuine GM Brake Combination Valve for various GM front disc/rear drum brake applications.
GM # 1257177 ACDelco # 172-1350
We are aware that this brake valve fits 1973-1978 GMC Motorhomes Vin TZE, and also 1974 Super Duty (SD) 455 Trans Am.
This valve will ship in its original GM/ACDelco packaging as pictured.
NOTE: This valve has rear drum brake proportioning. When used on the GMC Motorhome, the rear proportioning can be removed before installation by end user/installer. The long discontinued original GM steel assembly line valves, did not use proportioning in this application.
Note* It is the buyers responsibility to determine whether this brake valve fits their application.
This valve is guaranteed to operate properly for a period of 6 months from date of purchase.
There are no returns on discontinued new-old-stock parts, or modified parts.
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perfect in every way. good service fast shipping correct part installed and working correctly. this was a perfect oem fit and operation for the vintage 73-78 gmc motorhome. thanks guys