When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
My trucks from 98 and I still have that part from factory. I just recently replaced the reservoir on the rear Axel, lines, and the drums with spring kits, adjusters and the shoes.
Its a load sensing proportioning valve, it has an arm attached to the rear axle, the more weight you put in the bed of the truck causes the arm to move at the proportioning valve and that allows the rear brakes to adjust for the added weight.