D44's with a diesel

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Grand_Wag_85
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D44's with a diesel

Postby Grand_Wag_85 » Tue Jul 17, 2018 8:25 am

Planning on doing a Duramax swap into a GW to be a DD/tow rig. Will the D44's live behind the diesel? Stock height, stock tires, stockish LB7 or LLY with auto trans.
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Stuka
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Re: D44's with a diesel

Postby Stuka » Tue Jul 17, 2018 9:45 am

For daily driving the rear D44 would be perfectly fine (towing/hauling is where issues may come up). My concern would be the longevity of the front D44 with the extra weight on it. Ball joints may become a common replacement item.

And one thing to note, I don't think the engine will fit without a lift because of the axle to pan clearance. Stiffer springs would be wanted anyway to deal with the weight. But you can cross that bridge after the engine is in and you can check clearances.
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dodgerammit
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Re: D44's with a diesel

Postby dodgerammit » Sun Jul 22, 2018 2:03 pm

Stuka wrote:For daily driving the rear D44 would be perfectly fine (towing/hauling is where issues may come up). My concern would be the longevity of the front D44 with the extra weight on it. Ball joints may become a common replacement item.



This. Having been on a Dodge truck forum, there have been plenty that have put a Cummins 12 valve (1200#ish) over a 44 with no issues even after a couple years in. However, the weight rating would concern me since a 44 is rated at 3500#. I would also say it depends heavily on the quality of balljoints in the axle.
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derf
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Re: D44's with a diesel

Postby derf » Mon Jul 23, 2018 12:50 pm

They might live for a while but if I was going to the trouble of doing a swap with a big heavy diesel I'd be researching heavier duty axles than factory stock.

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Nikkormat
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Re: D44's with a diesel

Postby Nikkormat » Mon Sep 24, 2018 1:11 am

Put a 4cyl diesel in it to save weight, and pull 30+ MPG out of a Waggy.
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Re: D44's with a diesel

Postby Adventure_Wagon88 » Mon Sep 24, 2018 4:01 am

Nikkormat wrote:Put a 4cyl diesel in it to save weight, and pull 30+ MPG out of a Waggy.


What 4 cyl diesel would do that? Do you have any evidence to support this? I’m doing a 3.9 L diesel in my Waggy and expect maybe 19-22 MPG. I’ll be thrilled if I can squeak 25 out of it empty. Even if I was running stock tires I don’t think it would break 25 easily. I’m doing a TDI 1.9 in my XJ and that I expect to be right around 27-32. I’m just not sure 30+ is realistic with any engine in a Wagoneer due to weight/size/aerodynamics

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Re: D44's with a diesel

Postby Adventure_Wagon88 » Mon Sep 24, 2018 4:06 am

I went through this same phase of questioning for my build. What it came down to for me was weight on the front axle, and towing. I just didn’t want to have to worry about the axles all the time. You have to look too at what the factory engineered too. There are no 1/2 ton rated Duramax trucks. You’re only going to find them paired with a very stout full float 1 ron rear. Even if you don’t want your Wag to be much bigger, I’d plan on running a set of tons and a tire size you’d find on a stock duramax truck which will be a little bigger than the OEM wagoneer tire, probably around 31-32.5” tall. You can fit that with minimal lift/trimming.

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Locked and Loaded
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Re: D44's with a diesel

Postby Locked and Loaded » Mon Sep 24, 2018 4:43 am

I'd be more worried about the frame.
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