Ford E-Series Van with Springlock fittings Rear A/C Block Off Kit. About This Product This kit for Springlock Style Fittings . BK67075 Aux A/C Elimination Kit. Our rear air conditioning block off kit for the Ford E-Series Vans with the spring lock/quick disconnect fittings is the economical solution to repairing your rear A/C system leaks by eliminating the rear system and retaining the front A/C.
