Thanks for the good ideas. I'll get a picture up, thats easy once I get back home. I dont recall seeing half inch pipe but I dont always notice everything.
It just occurred to me that IF a dual reservoir MC with two one inch bore cylinders replaces my single reservoir with 1.250" bore, I'm not reducing the pedal power, I'm increasing it. Or so it seems to me. If decreasing the bore size reduces braking power, wouldn't adding an extra cylinder increase it? What do you think about that? My old MC is worn out and needs replacing in any case. Then consider that those two cylinders are getting pressure from an 8" diameter married booster under the floor, and it seems if there's no hydroboost, I've greatly increased the power of the brakes. If I do find there is a hydroboost, it seems like simply replacing the MC with a dual one would be an improvement ? There are a LOT of those duals with boost being sold as upgrades on half tons so why wouldn't it be also an upgrade for a two ton without hydrovac. I do want the best though and it does look like hydrovac or hydroboost is the best. It might be a few days until I can get out there
Quote:
All of the "kits" found on line are for cars and 1/2 ton trucks, they have the smaller diameter MC. Your truck came from the factory with a 1.25" MC. If you use a MC with a smaller diameter you end up having to push the pedal further to the floor to move the needed amount of fluid to activate the brakes. This could be dangerous if you get low on fluid or out of adjustment due to normal wear! I've never done the conversion you're asking about on a big truck (only on 1/2 tons), but have always understood you need to match the MC bore sizes when doing it.
Last edited by 49TT; 12/28/2025 2:57 PM.
