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Old 01-25-2012, 01:21 PM   #1
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Workhorse/DuraMax Conversion

Has anybody installed the chevy duramax diesel in the gas workhorse chassis?
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Old 01-25-2012, 04:32 PM   #2
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Don`t believe the Allison is built to take the torque.
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Old 01-25-2012, 06:40 PM   #3
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Quote:
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Don`t believe the Allison is built to take the torque.
Buzzzz... wrong answer. The Durmax comes with the Allison 1000 with the grade brake option.

Allison /Duramax
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Old 01-25-2012, 06:47 PM   #4
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I stand corrected,assumed it was desaigned for the 8.1.sorry
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Old 01-25-2012, 07:06 PM   #5
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The Allison 1000 was also mated to the 8.1 in the 2500HD truck line.
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Old 01-26-2012, 05:29 AM   #6
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Quote:
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I stand corrected,assumed it was desaigned for the 8.1.sorry
transmissions are not designed to engines. Look at the T56... comes in vettes, vipers, mustangs...etc.
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Old 01-26-2012, 03:28 PM   #7
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transmissions are not designed to engines.
For purposes of discussion in this topic, Workhorse, the power train is matched to the proper size Allison transmission.

(New) Allison has just released a new 1000 series transmission, the 1350, which allows for a GCWR of 30,000 pounds similiar to the 2000 series transmission which is also rated for 30,000 pounds.

On our Class 6 vehicles the transmission must be capable of handling the input torque from the engine therfore designing a transmission to match the torque is essential.
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Old 01-26-2012, 09:51 PM   #8
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Stay tuned.....
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Old 01-26-2012, 10:00 PM   #9
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I was looking at putting a diesel in my zr2 pickup... decided not to because the trans are very different.. a gas engine likes to turn 3 to 5 k rpms... a diesel likes to turn 1.5 to 3 k rpms... shift points are all wrong... But if you change the trans or at least reprogram it would be a good swap.
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Old 01-26-2012, 10:12 PM   #10
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I was looking at putting a diesel in my zr2 pickup... decided not to because the trans are very different.. a gas engine likes to turn 3 to 5 k rpms... a diesel likes to turn 1.5 to 3 k rpms... shift points are all wrong... But if you change the trans or at least reprogram it would be a good swap.
Along with possibly a rear axle and gear change to take the torque and lower RPM.
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Old 01-28-2012, 05:50 AM   #11
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JonBrazel are you going to tells something, I waiting, I serious interested.
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Old 01-28-2012, 06:30 AM   #12
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We have a customer that is interested in having this conversion done....will let you know if it comes to fruition.
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Old 01-28-2012, 01:41 PM   #13
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Good deal Jon, if it can be done, I'd imagine you could do it provided someone with enough desire and $$$ wants it done. Probably many big obstacles to overcome. I asked the mechanics who changed my 8.1 if they could put a Duramax in there and he said he doubted it would fit through the top of the doghouse hole.
Then you gotta find a diesel generator that would fit where the 5500 Onan is also.
This would be awesome project to put in your blog though.
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Old 01-29-2012, 05:21 AM   #14
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when they installed the new workhorse 8.1 in my w22 last sept. they rolled the axel out and it went in from below, 2 days.
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