Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

And I've got a question. Does anyone know what this little box does? It's got what look to be vacuum lines coming off of it, can't figure it out. Doesn't help that the guy that I bought the truck from had a bunch of it disassembled before I got it...

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

That valve is for an exhaust brake. Looking at your first picture it looks like there is an air cylinder by your turbo and that would close a flap in the exhaust to slow the engine down during deceleration. I bet there is also a switch on the fuel pump that will only allow power through when the throttle lever is at idle.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Nice project you have going on here. I would try to install the intercooler now rather than not using it. If you plan to keep the engine near stock HP levels and don't plan to tow, than you can get away without one. If not, plan to install one. You have the dodge fan, why not use it? It's more reliable than an electric fan.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Yeah, I'm going to use the intercooler, going to work on fabbing up the cab mounts on the dodge frame tomorrow and then start getting the front clip on and start the figment process. The only reason I wouldn't use the dodge fan is for clearance issues. The front axle on the dodge is further back than the Chevy so I have to do some playing around with the placement of the cab to make it all work. I'll update as I make progress.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Worked on getting that damn p-pump out for the better part of an hour and just couldn't get the inner bolt to break loose. Anyone have any suggestions? Gonna try a universal on it tomorrow, couldn't find mine tonight. But I got the opposite side of the engine stripped down. Going to reassemble after I get everything cleaned up and the gasket kit gets here.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Which inner bolt are you referring to? One of the inner retaining nuts? I use a u-joint type swivel socket and a 12-16" long extension to get to them. It looks like you have some exhaust manifold bolts to extract too. Super fun. Haha

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Got the p pump off! That was the ticket, the universal, popped right off. And yes....I've got four manifold bolts to extract! But I started degreasing the engine this evening with mineral spirits, hadn't ever heard of it but it works amazingly well to get all that road grime off. And anybody know what that box looking deal is toward the back of the block with what looks to be a coolant line connector coming from it? It was behind the p pump and the hose was broke off of it, wondering what it's for.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

If you're referring to the tan colored piece, that is the tappet cover. The box with the tube coming out of it is the breather. That is the only breather on the engine. There is a packing in there to help seperate oil from excess crankcase pressure as it exits the block. A road draft tube is usually attached there with a spring clamp and it is routed in between the starter and engine block stock. 3/4" hose to be exact. :lol:

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Got my gasket kit and fass system! Christmas came early!! Time to start resealing this pig and get her put back together! Even got the wife to help strip some of the gunk off the chassis!

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Here's some before and after of the clean up, looking pretty good I think.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

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Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Tried to get cab mount pics

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Rear mount

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Got the old front cab mounts cut off the dodge frame and gonna start measuring for the Chevy cab, should have some fabbing done up by the end of the week! Don't mind the nest of wires there on the transmission...it'll get sorted out eventually. Thanks for the pictures there tigger!

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Was just thinking...if the front of this truck is such a tight squeeze with the inter cooler and all, I'm gonna get an extra couple fenders and cut out about four inches in front of the wheel and slice another fender in the same spot. Splice in the extra length, will give me more space out front, line up my fender over my wheel properly, and allow me to keep my cab a little further back. Anyone tried this? Cause I'm thinking this will be just about a perfect fix for the tight squeeze/wheel placement problems.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

I did a little wood working tonight and thought that it'd be easier to build a form or jig if you will of the cab mounts to figure out where to weld my mounts on the truck. The horizontal bars are as wide as the flat portions of the front and rear cab supports so as you see on the rear mounts they would have to be put through the frame, not a fan of this idea. So I'm going to move the nut plate that is in the cab out to the end of the flat portion of the cab support and drill a new mount hole, and weld the bracket in. This will give me enough room I think to keep the original style cab mount bushing stack up and keep from cutting into the frame. The front is clear by a good couple inches! So that's good news!

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Cool build!

Here's another Chevy cab on a cummins/dodge chassis: http://www.67-72chevytrucks.com/vboa...d.php?t=178608

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Found some old notes from my build in 2003. The bed mounts are the highest point (obviously) which I called 0 - the rear cab mounts are 3 1/4" below them- the front cab mounts are 5 7/16" below the bed mounts & the rad supports are 3/4" below the bed mounts. Don't know if this helps (& I would triple check them if you use them) but, thought they could be useful.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Awesome project. You will have a stout truck that drives like a late model Dodge. I did a Chevy cab swap onto a Cummins frame. Link is in my sig. I'm not sure if it will help you because I used a 55 Chevy and a First Gen Cummins truck.

Dieselwrencher may know more about this than I do on a P pump truck but I don't run a fan at all, mechanical or electric. This freed up a lot of room for me. Mine is also a VE pumped engine though. The P pump can put out a lot more fuel which would relate to heat.

Also, I reused the Cummins truck radiator support. This saved time mounting the radiator and intercooler.

If I had to do it again I would try to get by without the intercooler. It was a ton of work to make it fit. Including cutting the firewall and sectioning a wheelbarrow in.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Oh yeah I forgot ^ he used a dodge chassis. Check it out, his is sweet!

Re: Swapping a 69 Chevy body onto a 97 Cummins chassis
 

Thanks for the link! Any and all ideas are welcome, I'm going to get the front cab mounts done up today and set the cab on the chassis. I'll put up pictures as soon as it's done. Then I can start playing with the clearance issues up front.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Finally got back to working on the truck some. Welded the front cab mounts on and set the cab on the frame for a test fit. It's so cool to see the cab on that frame!! Gotta work on the final cab placement and how to center the axle in the fender but I knew that was coming.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Lookin' good!

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

I've got a question for you diesel knowledgable people out there. I've got the fass system for the 12v and was doing some thinking about the stock lift pump...I don't need it anymore right? And the fuel bowl/filter on mounted on the back of the intake? The was I understand it is the fass system has both of those things built into it, so why keep the old stock stuff? Looking to clean up some junk in the engine bay if it's mechanically sound to do so.

Re: Swapping a 69 Chevy body onto a 97 Cummings chassis
 

Do you know which model of fass pump it is? The truck is looking nice. Keep up the great work!