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I really like the 3M brand rubberized undercoating and the stuff I got at the automotive paint store was way better than the 3M stuff I got at NAPA or box stores. This stuff hardened a lot more and would resist a thumb nail imprint unlike the other stuff where the thumb imprint never went away.

Cummins part no. 3379076 There are -0_ releases of the manual as well. My 1978 manual is 3379076-03.

yes, I have access to laser cutters, CNC press brakes, full machine shop, saw shop, tube benders, welders, hydraulic hose crimp machine, powder coating & wet paint shop, blasting booth...etc. Basically, everything you need to do this stuff the right way. All one needs is some imagination...

The switch brackets were laser cut out of 14 ga. stainless steel and formed up to the shapes you see. The welded 1/4" nut that's been drilled out on that Z bracket will index the bracket to the throttle lever just like the original throttle lever bolt so it should always stay straight. The...

Here is a walk around of the truck Soni built - might catch a peak of a useful detail or two...

All washed, painted, lightly oiled inside, and continuity checked in the wire connections. Just waiting to get installed :) *for whatever reason my engine has a charcoal gray block, OD heads, gray rocker boxes and valve covers, gray intake, OD thermostat housing & water pump. Can't guess...

The first order of business was taking an inventory, then washing/ degreasing everything, and wire wheeling any rusty threads. Second step was getting the front head milled to clear the radiator support bracket. The machinist at work took off .188" in the CNC mill to get the bracket just a...

I looked high and low for 425A jake brakes purely for the benefit of running a divided entry turbo with pulse manifold and the closest I found was one set of heads only (no installation hardware or crossheads) for $1000. That's a better price than new but still pretty steep. I checked in with...

Well, since I modified a spare valve cover I still have my original that I will have to do something with. I'll think about that and see if my welder is up to it. If I did another one I would experiment with cutting out the triangle sliver but leaving the short side without any relief cuts or...

Thanks, lonnie! Hopefully there is little enough variation in these trucks that yours might also have a similar clearance.

With the new low-profile valve cover now finished with its surgery I mounted it onto a jake head to see if it would clear the internal parts that sit proud of the upper gasket surface. My plan was to dimple the valve cover in places that needed more clearance if there was a crash. The socket...

I can't take credit for the welding as I had a coworker who does that for a living stitch the valve cover back together again. His TIG welds turned out pretty nice but my cutoff wheel action left almost 3/16" gaps to fill and that was a challenge. And now with the welds ground down and...

I did not completely sever the top lid on the short side of the valve cover - I left the straight parts connected but I did cut through the indentation areas of the short side with a dremel tool cutoff wheel since the metal would have to go somewhere when bending the top down flat. Now it's...

Today I had my first trial fit with a front jake head installed under a stock hood and it was a success! Woohoo! ...Okay, i had to trim the middle hood support channel, but other than that no cutting, spacing, clearancing, denting or hood scoop done to the hood. I've been poking away on my...

Thanks for the doodle. I could make one of those easy enough.

More 809s on XLs. I just can't help myself

I see. So the outer pin inserts into the pulley bolt or something and the inner pin grabs a pulley spoke?

Here's an M813 on 16.00s just for fun.

Good to know, thanks. I might have to send my wife out for a second job...