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1982-2000 C/K Truck & SUV Chassis & Drivetrain Discussion Forum for the 1982-2000 GM Pickup Trucks and SUVs, and their Transmissions & Drivetrains, cab, chassis, electrical systems and a lot more.

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Old 03-16-2018, 02:57 PM
94chev4x4 94chev4x4 is offline
Join Date: Mar 2018
Location: Canada, Ontario, Sault ste marie
Posts: 1
Exclamation NV4500 swap

New here, i have a 94 k1500 6.5 with an auto trans. Not an auto kind of guy!! I'm getting a parts truck, a 2wd 3500 manual. My question is, can i just steal parts from it and swap in the nv4500? Is the 2wd trans the same as a 4x4? And can i use the ecm from the parts truck in mine so it doesn't go into limp mode when it doesn't sense the auto trans? Or what will i need? Thanks for any replies
94 GMC 6.5td auto- stock for now
Dad's 94 GMC 6.5td auto- 4" exhaust and manual wastegate
2-96 Chev 6.5td- parts
Chev 3500 2wd nv4500-parts (unknown year)
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Old 03-16-2018, 03:22 PM
trbankii's Avatar
trbankii trbankii is offline
Join Date: Mar 2000
Location: South Central Pennsylvania, USA
Posts: 2,580

I’ve been considering a similar swap for my ’94 Yukon.

The 2WD and 4WD trans have differences. At a minimum, you have to tear the transmission down and swap out the rear housing and the mainshaft. Here are links to the pieces (LINK and LINK). Once you get into the trans, you’re likely going to want to replace bearings and seals since you’re there anyway.

The ECMs will also be different between the 1500 (L56) and 3500 (L65) engines. Kennedy Diesel (in the vendor section) can likely retune your 1500 EMC for the manual transmission.
'94 GMC 6.5TD K1500 4L80E 2-Door Yukon SLE 216K
'93 Chevrolet 6.5TD K2500HD NV4500 Std. Cab Longbed 184K
'85 Toyota 22R RN60 4x4 Std. Cab Shortbed 178K (Currently retired for rebuild)
Diesel Page Member #2423

Last edited by trbankii; 03-16-2018 at 03:34 PM.
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Old 03-17-2018, 04:53 PM
sctrailrider's Avatar
sctrailrider sctrailrider is offline
Diesel junkie
Join Date: Feb 2012
Location: Pauline, SC
Posts: 514

The auto truck will NOT have the mount up under the dash to mount the petal assembly fully, you will need to cut the spot welds and install it in the auto truck, complete removal of the dash will be needed. I will post a pic of the bracket if I can...
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File Type: jpg clutah petal mount 2.jpg (8.6 KB, 20 views)
File Type: jpg clutch petal mount.jpg (7.0 KB, 18 views)
File Type: jpg clutch petal mount 3.jpg (9.5 KB, 18 views)
1993 Chevy K3500

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Old 04-20-2018, 09:40 AM
JeepSJ JeepSJ is offline
Jeep Freak
Join Date: Sep 2003
Location: Feeniks, Aridzona
Posts: 1,114

If that 2wd NV4500 doesn't work out for you, I'd be interested.
1987 Jeep Grand 6.5 in process...diamond block, 18:1's, other goodies...

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