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Proper service procedure requires that a proportioning valve depressor on the 4WAL unit when pressure bleeding the brake system. For best results on 4WAL, use two of these depressors, one for each valve. Services a wide variety of GM utility vehicles, vans, and pickups with Kelsey Hayes anti-lock brake systems. Also works on RWAL systems and must be installed on the proportioning valve (only one depressor required for RWAL). This tool supersedes Kent Moore No. J-35856. |
