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oldestof11 wrote:Tbi runs about 15 psi so that is a good pressure if you want to use it as a lift pump. Good luck!
ellis93 wrote:If its genuine GM tbi then it has a return, add should be two lines off the back of it. Since you'll have to drop the tank anyhow to get rid of the fuel pump why not look into some sort of draw straw or something. I'd bypass the dinky GM fuel lines for one other reason, they have rubber flex joints where they jump from frame to bell housing that will more than likely swell up as its not rated for diesel.
As for the hydroboost connection, you can T the two returns together off the truck into the one on your engine. Read where most have without problem.
Look in the electrical section here,I posted up the wiring diagrams for the 93's a while back
ellis93 wrote:IDK anything about the hydros for the clutch.
Look under the truck at the cross member in between the two tanks,there will be six pieces of rubber hose(3on each side) if you keep your factory lines you'll need to replace them with oil rated line. Trans cooler hose,power steering return hose works good,either one wont swell when diesel meets them. Id take the pumps,yes there's two,one in each tank, out of the tanks and splice in a piece of tubing in place of the pumps. I'd use a compression union to do so. Then you'd be good,the tank selector should work fine in the diesel,least they have in the past for me.
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