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Just another DuraMax swap
Author: hal (Show all albums)

Converting 669 to an oil burner.
Show Newest Photos First | Show Oldest Photos First223 Photos - Page : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19]


The HB rod has to be 2.75" for the clutch slave to work correctly. Here I've modified it to the correct length.

Here is a look at the HB (hydro boost) I will use for the front brakes. It has an adjustable spool valve that can be used to limit front wheel braking pressure. Probably won't need to adjust it but its there and easier than installing a proportioning valve in the brake line.

Here is the fuel cooler mounted. Another necessary accessory for the diesels..

Here are the master cylinder lines tied together for the rear brakes. The remote master cylinder uses a 37mm piston and the flow should be more than needed for the four rear wheel cylinders.


Here's a better look at the longer accumulators on these hydro boost units.

Here you can see the rear hydro boost I'm using. I used an uncommon hydro boost from a Yukon that has a much larger accumulator. These are used as a reserve to help keep the power brake working in case of engine failure. Just a little extra help just in case....

Here you can see the ring drilled with 20 holes that will hold the sender ring mount. I used 1/8" for this one. I cut the donors tank up to retrieve the ring. Not the cleanest approach but it should work.

I used a 1/4" 8" round piece of steel for the weld in plate to the tank. Drilled and tapped 20 equal spaced holes for 1/4 x 20 threads to hold the sender in place.


Here's what I came up with for the fuel sender/ supply return for the tank. Got to say I HATE welding on a fuel tank!!!!

Motor needs to be level with frame too. Hard to find a flat spot on the Duramax for the level but this worked.

You can see some of the gusseting here. Thats not going to move.

Other end of trans mount.
Show Newest Photos First | Show Oldest Photos First223 Photos - Page : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19]

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