1990-1991 Chevrolet chevy gmc van proportioning valve w-option JB7 1990-1991

General Motors Part No: 539.gm8y90

Manufacturer: General Motors

Part Number: 539.gm8y90

Interchange Part Number: 539.gm8y90

Fitment Type: Direct Replacement

Hello, This brake proportioning valve is from a 1990 to 1991 Chevy or GMC full size van ( 10/20/30 ).   It is for a van that has option code "JB7" brakes and used a isolation dump valve.   This is with Disc brakes in front with vacuum brakes. (uses a brake booster).

This is NOT for "JB8" brakes that had hydro-boost brakes.

These parts are cleaned for inventory and handling purposes and may need to be cleaned further to meet your personal standards.

 Please look at all of the photos as they are an important part of the description.

This item was tested before the van was dismantled and is in good condition.    You should use new brake fluid when you replace any part of your system.   You must remove the cables from your battery before you remove or reinstall this part.   You have to re-boot your computer after you install.

Shipping: Ships U S MAIL...       We have no international shipping available. Pick up is available during normal business hours.

Sales Tax: By law, Items shipped to a Texas address will be charged 8.25% sales tax. Automotive businesses are welcomed to fax us a completed "Texas Sales and Use Tax Resale Certificate".

Info: We are a small family run auto salvage and have been in business since 1977 and located seven miles north of Houston's Bush Intercontinental airport. Our address is: Pete's Auto Salvage, 22191 W.Ford Rd.,Porter,Tx. 77365.   Our hours are 9:30 to 5:00 monday-friday and 9:30 to 4:00 on saturday, Central Standard Time.