justinsch25
New member
Has anyone ever done or heard of anyone doing a Duramax/Allision swap into a 73-91 Suburban?
73-91 Suburban Duramax Swap
- Thread starter justinsch25
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shortbus4x4
Expedition Leader
I have heard of it done into a pickup of the same era. A Cummins would be much cheaper and easier to do. A duramax has a lot of electronic gizmos and wiring. If all the electronic gizmos aren't all together like a family your engine and trans won't work. Eg. ECM and I believe the Instrument panel have to be together and programmed to be together or no go. I know there are aftermarket controllers for the trans but am not sure about the engine. Again a cummins would be much cheaper and it has been done quite a bit so you can learn from other peoples mistakes, not your own.
justinsch25
New member
Okay, now I am starting to understand why the Cummins swap is so popular. Thanks for advice.
pulltilbroke
Adventurer
Yes it has been done many times, but like has been said cost will be a factor.
Standalone contollers are available for both the Duramax and the allison. Ever thought of using a Manual tranny, The Bell housing bolt pattern is the same as the old stuff, You could use a Chevy NV4500 or even a ZF5 or ZF6 out of a wrecked Dmax truck but stick Dmaxs are very scarce.
What series of Dmax were you planning on using?
Standalone contollers are available for both the Duramax and the allison. Ever thought of using a Manual tranny, The Bell housing bolt pattern is the same as the old stuff, You could use a Chevy NV4500 or even a ZF5 or ZF6 out of a wrecked Dmax truck but stick Dmaxs are very scarce.
What series of Dmax were you planning on using?
mcgall83001
New member
6.2 /6.5
Have you looked at a 6.2 or 6.5? It's a far cry from a Cummings but but will probably cost less than half. There is aftermarket support to correct some of the shortcoming of the engine.
+ no electric to worry about.
Have you looked at a 6.2 or 6.5? It's a far cry from a Cummings but but will probably cost less than half. There is aftermarket support to correct some of the shortcoming of the engine.
+ no electric to worry about.
justinsch25
New member
Thank you for the feed back, don't really have the money right now.
Just in the planning stages right now.
Justin
Just in the planning stages right now.
Justin
coreys88burban
Adventurer
i was planning aduramax allison swap into my 88 burban. duramax will be wire for wire with what you can you as GM wiring is the same i mean colorwise such as the starter wire (always purple..and so on) but it is a lt more money. also you need a custom crossmember for the engine and transmission. then you need a custom wiring harness to work with you inst. cluster (PPE makes them if u send it all in but it expensive) and a cummins will be cheaper, and all the swap parts including a crossmember are made and affordable. me i plan a 12v cummins (stock) with a Suncost stg V. Allision Transmission. then later on moddin the 12v to about 450-500hp and 700-800tq world class automatic trans and long lasting engine that will litterly run on **** if needed..not a bunch od sensors like a duramax..the mechanial cummins wil run on just about anything u put into the fuel tank hahaha:victory:
FellowTraveler
Explorer
bfdiesel
Explorer
A slammed three door with a duramax and 6 speed allison would be the reason I was asking not really an expo reason. I don't think their doomsday diesel is going to be going far after they have an em pulse to destroy their transmission controller.
I do like the idea of a 12v p pump with a manual transmission (g56 or eaton fuller) in a quad cab ford OBS. This truck is actually a goal of mine once I get a house with a shop/garage.
I do like the idea of a 12v p pump with a manual transmission (g56 or eaton fuller) in a quad cab ford OBS. This truck is actually a goal of mine once I get a house with a shop/garage.