6.0 Gasser to a Dmax?

bullfrogjohnson

Big Girl!
Nov 20, 2006
4,167
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Locust, NC
I have a POS 6.0 2500hd that I bought for a DD. The original intentions were to eventually convert it to my new puller and strip everything off my 03 and put it back to DD/tow rig. I have done some research but cant find anyone who has converted one.

Will I still need a cluster and pedal assembly? Will the 6.0 radiator be enough for a puller? I would run water/air cooler and a fuel cell so do I really need the dmax core support? Are the t-case the same? I am trying to see if it will be better to buy a donor truck or can I just buy a motor, tranny, harness and computers and make the rest work.
 

Rhall

Old Skooler
Aug 12, 2006
2,241
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Texas Y'all
I have a POS 6.0 2500hd that I bought for a DD. The original intentions were to eventually convert it to my new puller and strip everything off my 03 and put it back to DD/tow rig. I have done some research but cant find anyone who has converted one.

Will I still need a cluster and pedal assembly? Will the 6.0 radiator be enough for a puller? I would run water/air cooler and a fuel cell so do I really need the dmax core support? Are the t-case the same? I am trying to see if it will be better to buy a donor truck or can I just buy a motor, tranny, harness and computers and make the rest work.

I think that Ed (05smoker) and his brothers Orange reg cab was a 6.0 truck that they converted to a duramax.
 

TIM Z

Screwed by 0087s
Jan 17, 2009
1,574
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Navarre, OH
Yeah i was gonna ask too, sell me the 6.0. I need a good one to put some forged internals in hehe.
 

schulte

New member
Jul 31, 2010
449
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CT
There are plenty of differences... Dmax rear axle is 11.5 instead of 10.5 (as stated above), dmax runs a NP263 transfer case/gasser runs a NP261 IIRC, fuel tank, fuel cooling radiator, fuel filler neck, trans cooler radiator, fuse panel (underhood), cluster is different, accelerator pedal is different IIRC, underhood (engine-ECM-trans) wiring harness is different, driveshafts are different lengths, etc. Also of course ECM, TCM, and engine/trans. AC lines may be different.
 

RichLMM

Member
Sep 5, 2010
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North Kingstown RI
according to the guy at duraburb he said you get the correct year motor for the truck its all plug n play he said if i brought him my 03 6.0 he'd have a 03 lb7 in it and running in a weekend
 

05smoker

I'm officially done!
Mar 30, 2007
2,379
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36
Lebanon, OH
according to the guy at duraburb he said you get the correct year motor for the truck its all plug n play he said if i brought him my 03 6.0 he'd have a 03 lb7 in it and running in a weekend

Yeah I have heard the same - if both trucks are 03-07 you have a lot less work.
 

dmax06

barely getting by......
May 10, 2009
262
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white plains, GA
After all the years of unexplainable life from the ole white truck, and now you wanna pull with something else? That would just be wrong!!!! :D
 

bullfrogjohnson

Big Girl!
Nov 20, 2006
4,167
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Locust, NC
After all the years of unexplainable life from the ole white truck, and now you wanna pull with something else? That would just be wrong!!!! :D

It will still be the motor out of the white truck. This truck is white too but its an 06 work truck and I wont feel bad about chopping it up into pieces to go open driveline.
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
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Texas!!!
dmax runs a NP263 transfer case/gasser runs a NP261 IIRC,
I have no idea what transfer case a 6.0 gasser runs, but the only difference between a 261 and a 263 is one is manual shift and the other is electronic. The Duramax uses both.
 

Car RamRod

Right Meow!
Apr 12, 2009
231
0
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Just west of Mobile, AL
I have no idea what transfer case a 6.0 gasser runs, but the only difference between a 261 and a 263 is one is manual shift and the other is electronic. The Duramax uses both.

The 6.0 comes with a 4L80e and a 261 or 263 in the HD trucks, the input shaft is different. T cases paired with the alli are actually 261XD and 263XD models.
 

bullfrogjohnson

Big Girl!
Nov 20, 2006
4,167
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39
Locust, NC
The best thing to do is get the whole truck for the swap, Eric at Duraburb does it because it make things much easier.

I just have a hard time justifying a donor truck because I will only be using the motor and computers.

I guess I should have been more clear. I am wanting to run a LBZ motor in the 06 truck. The truck will be a manual trans with big driveline. I guess I am curious if the 06 gas BCM, cluster and pedal will communicate with an LBZ ECM
 

john o

New member
Feb 3, 2011
28
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SUMMERFIELD, FL
imo jus go with a donor vehicle that way you will have everything just in case then part out/scrap the truck to get back some of the funds.