Re: 72 suburban with a duramax (the build)
 

When i first put it together i was running a 3:08 in the 12 bolt then i went to a dana 60 and now running a 3:55 gear the 3:08 was a little tall and the 3:55 is a little deep but was the tallest gear i could get for the 60. I wanted a 3:42.

Re: 72 suburban with a duramax (the build)
 

K Thx. Yea I just had a 9 inch built with 3.00 gears for my swap, so I guess ill just wait til I finish my swap to c how I like it? What size tires u running?
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Re: 72 suburban with a duramax (the build)
 

will you be running a allison 5 or 6 speed? my tire size is around 31in tall. I think you will find the 3.00 gear to be to tall. my burb wouldnt shift to 6th untill around 62mph with the 3:08 gear now with the 3:55 i am around 1800 rpm @ 65mph. i never gave up any mileage when i changed rear ends.

Re: 72 suburban with a duramax (the build)
 

Yea im runnin the 5 speed allison so ......? Was it noticeably tall on acceration?
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Re: 72 suburban with a duramax (the build)
 

I thought it pulled harder with the 308 gear. All of the gears seemed longer now seems like thats all its doing is bangin though the gears but still loads of fun. do you have a build thread?

Re: 72 suburban with a duramax (the build)
 

which lokar cable shift did you use? and how did you modify it? I had PPE do my harness as well, did you use an auxilliary fuse box with ignition hot and always hot connections?

Re: 72 suburban with a duramax (the build)
 

very cool

Re: 72 suburban with a duramax (the build)
 

I know he hasn't been on here in a while, but he has made some nice changes to the burb. He took it to Diesels on the mountain and clicked off 12.2's in the 1/4!

Re: 72 suburban with a duramax (the build)
 

famn rollin out in a burb makin the streetcars take a second look haha

Re: 72 suburban with a duramax (the build)
 

hey guys the burb has a new drivetrain. built Dmax compound turbos. I will try to get some pics on here sometime. I am headed to see Idaho Rob and see what this thing will do so should have some numbers on it by the first of next week!
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Re: 72 suburban with a duramax (the build)
 

Man! I gotta see this!

Re: 72 suburban with a duramax (the build)
 

+1

Re: 72 suburban with a duramax (the build)
 

Awesome!!

Re: 72 suburban with a duramax (the build)
 

x2!!

Re: 72 suburban with a duramax (the build)
 

Good luck with it Chad!

Re: 72 suburban with a duramax (the build)
 

Good looking truck and great build. I hope to see this in person one day.

Chris

Re: 72 suburban with a duramax (the build)
 

Well guys we made it to boise idaho today! Rob went and drove it and made me some new tunes for it going to drive it around tomorrow maybe get it on a dyno. I will keep you posted
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Re: 72 suburban with a duramax (the build)
 

Sorry about the upside down pic!
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Re: 72 suburban with a duramax (the build)
 

That setup looks sweet!!
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Re: 72 suburban with a duramax (the build)
 

Dear lord I love the swap but how do you get in there to work on anything other than just buy a new powertrain :lol:

Re: 72 suburban with a duramax (the build)
 

Chad, it looks awesome, and good luck with it man!

Re: 72 suburban with a duramax (the build)
 

I met you back in August at TruckFest in Denver (I was in the little blue Saturn you blew past on I-25 :lol:) never thought about finding you on the board :lol: I must say your Burb is pretty freakin' sweet. Without a doubt the best Dmax swap I've seen done on a classic chevy.

Re: 72 suburban with a duramax (the build)
 

Wow!! That thing makes a Cummins swap look like an afternoon project by comparison. Very clean man.

Re: 72 suburban with a duramax (the build)
 

It was a 1400mile road trip to get here milage was pretty consistant 19mpg. Glad you all like it think the journey home will start later today. Utah to wyoming pit stop at loveland co to drop off my buddy and then roll home on sunday. Maybe see some of you guys on the inerstate along the way.
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Re: 72 suburban with a duramax (the build)
 

Impressive!

Re: 72 suburban with a duramax (the build)
 

well here are the results from the dyno. suburban has idaho robs tunes and dsp5 switch. first pull was on low setting it went 735hp and 1120torq second pull was 821hp & 1314torq. rob was running it and aborted third pull on high setting he was worried about hurting the motor thought it was going to over rev but still made 851hp and 1350torq. then the fun was over and off to home made it back home today. Milage was 17.1 - 19.4. I Have the old Dmax and trans here if someone is looking! Have stand alone harness and all!
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Re: 72 suburban with a duramax (the build)
 

Nice numbers! I'd be interested in the dmax swap and fitnent info. size=1]Posted via Mobile Device[/size]

Re: 72 suburban with a duramax (the build)
 

What year dmax and will you take a kidney on trade?
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Re: 72 suburban with a duramax (the build)
 

I am a trader but never sold body parts so not sure what a kidney is worth lol. the Dmax is a 06 lbz trans is a 6spd
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Re: 72 suburban with a duramax (the build)
 

i wish i was a little closer to done with my green one. i think a dmax might find its way into the "parts truck".

burb looks awesome

Ryan

Re: 72 suburban with a duramax (the build)
 

Hey there! Awesome build. I'm thinking of going this direction with my 72 3/4 ton burb. Could you pm me your phone number so I can call you with a few questions I have? I also pmed you my phone number already if that works better for you. Thanks!
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Re: 72 suburban with a duramax (the build)
 

I met you on powertour this past summer, in Muskegon.

Your burb and your buddy's orange whippled burb were my motivation to find a blazer and get cracking on it for an awesome family cruiser.

http://www.67-72chevytrucks.com/vboa...d.php?t=529064

Re: 72 suburban with a duramax (the build)
 

hey guys has anyone ever been on drag week? I am no drag racer by any means but thought it would be fun to give it a whirl. rules? what would be the fastest I could run with not having a cage? sign up? any info would be great.
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Re: 72 suburban with a duramax (the build)
 

I've got nothing that would compete on drag week. And it is on the wrong side of the country, but I read about it every year. I never paid attention to the roll cage rules but is either 11.50 or 11.99. You think you will be that fast?
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Re: 72 suburban with a duramax (the build)
 

not sure it ran a 12.2 in Denver in the altitude with the dsp5 on setting 1 so could I am not sure
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Re: 72 suburban with a duramax (the build)
 

Here is the link for drag week. http://image.hotrod.com/f/40167204/H...Week+Rules.pdf

And the NHRA quick rules. I was going to link it but it was 41 pages.
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Re: 72 suburban with a duramax (the build)
 

Thanks for the info i will check it out.
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Re: 72 suburban with a duramax (the build)
 

Yep at 11.50 you need a 6pt roll cage for sure. You should be there easily Chad.

Re: 72 suburban with a duramax (the build)
 

I dont think i can bring myself to putting a cage in the burb quess i will just keep it 11.50 or slower. Would any of you have blueprints for a invisable cage?
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Re: 72 suburban with a duramax (the build)
 

Sent you a PM about your original drivetrain, if you still have it and are interested in selling let me know, thanks!