Quote Originally Posted by jim_in_dorris View Post
Fast, I have a 90 Astro van with hydroboost brakes. Would that unit be adequate for installing in a 1/2 ton 4x4, or should I look for a 3/4 ton or 1 ton unit out of another pickup.
Those Astro/Safari vans are basically 1/2 ton truck or 2nd generation F-car like brake setups. The Astros hydroboost sits at a downward angle on the firewall. Hydroboost is commen to find in the later G-vans as well. From about 1993 to 1995 it seems nearly all the G20s and G30s used hydroboost.