Brake Proportion Valve

[rmr_69c10]

Hoping someone can confirm, this looks like a mid 70s valve with slightly large input/output for the rear vs the fronts. The meter rod is stuck so it won't bleed nicely and get my brakes back to a happy place (I had the rear axle off to replace the gears). My truck is a 69 that the previous owner converted to discs on front with parts that appear from a mid-70s GM product.

I'm thinking these are the correct valve specs, but hoping someone here may be able to tell by the photo before I just start buying parts and guessing. Thanks.

- connect to a master cylinder with 1/2"-20 and 9/16"-18 outlets
- Two 3/8"-24 IFF outlets for the front brakes and one 9/16"-18 IFF outlet for the rear brakes