Not so, the stock valve is preset and non-adjustable. The suburban was much heavier over the rear axle. A lot more sheet metal, glass area and extra seats etc. When you get down hard on the brake pedal the rear end wants to come around because the rear drums are locking up quicker than needed. Can be scary! Thanks for the reply.
Last edited by Gdads51; 02/15/2026 5:34 PM. Reason: corrected copy/fixed censored language
