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Old 04-30-2019, 12:42 AM   #1
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BigRed76's Avatar
Join Date: Jan 2010
Location: Loveland, CO
Posts: 1,920
Lift required for Cummins swap?

I recently acquired a Ď71 GMC K2500 that I will be going through the whole powertrain/drivetrain as it hasnít been driven in 20 years. Iím tossing around the idea of a Cummins & NV4500 or NV5600, but would really like to leave the truck stock height or close to it. All of the searching Iíve done so far shows that every Cummins swapped 67-72 4wd is lifted, but nobody has shown if there are any potential clearance issues between the oil pan and front axle. I would love to hear some input on what clearance issues there are and if a suspension lift would be required. Thanks in advance

Oh and I attached a picture since I know we all love pictures.
Attached Images

1970 Chevrolet Custom Camper K20, currently a shell
1971 GMC Super K2500, 12V/NV4500 swap in progress
1971 Chevrolet Custom C10, 5.3/4L60E, 3.73's
1972 Chevrolet Custom Deluxe C20, 5.3/4L60E, 4.10ís
1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi
2004 GMC Sierra 2500HD, LB7/Allison, CCSB
2005 GMC Sierra 1500, 5.3/4L60E, CCSB

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Old 05-15-2019, 01:24 PM   #2
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Location: Tell City, IN
Posts: 633
Re: Lift required for Cummins swap?

Dieselwrencher can help you with this, he as a 67-72. I have a 78 and 2wd :/
Big Nate
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96 F250 Supercab 4x4 7.3
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Old 05-15-2019, 11:43 PM   #3
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Location: Hubbard OR
Posts: 46
Re: Lift required for Cummins swap?

Ya I got a Autoworldmt engine cross member and they recommended a 4 in lift. I put on a 4 in lift and have good clearance between the pan and Dana 60 front but donít plan on doing any stump jumping. Probably could come up with some pictures if wanted but might be a few days
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