1989 chevrolet k3500 12V Cummins conversion

1989 Chevrolet C/K Pickup 3500 Silverado

Technical specifications of Chevrolet C/K Pickup 3500 1989

Price: -
Condition: Used
Item location: Magnolia, Texas, United States
Make: Chevrolet
Model: C/K Pickup 3500
SubModel: 3 + 3
Type: Extended Crew Cab Pickup
Trim: Silverado
Year: 1989
Mileage: 125,000
VIN: 1gchv33n2kj118870
Color: Gray
Engine size: 12 V Cummins
Number of cylinders: 6
Power options: Air Conditioning, Power Locks, Power Windows
Fuel: Diesel
Transmission: Automatic
Drive type: 4WD
Interior color: Red
Drive side: Left-hand drive
Options: 4-Wheel Drive
Vehicle Title: Clear
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Car description

1989 1 ton Silverado 4x4 converted to 12V Cummins Turbo diesel. The conversion was done at a shop in Utah. I have put around 300 miles on it. The engine is a 92 Dodge Cummins, originally from a 5 spd truck. Smaller exhaust housing turbo swapped on for quicker spooling. Oil pressure and water temp sending units are Chev. Has new thermostat and gasket. A/C comp is dodge (new) but needs charged, AC developed leak after being in local diesel shop for additional work: New front gear case installed and dowel pin addressed, New 50hp industrial injectors, tune up, 3k governor spring, fuel pin.

During conversion the following items were addressed:

  • New fuel filter and lift pump.

  • New filters and oil in engine, trans and transfer case.

  • New Pro Comp 6-8" lift shocks and extended stainless brake lines.

  • Sky Jacker drop pitman arm and Dana60 block to correct steering geometry.

  • Intercooler and intake horn are 94-98 Dodge.

  • The grid heater is not wired in (12 valve Cummins rarely need them even in cold weather and a lot of guys even delete the heater itself for better air flow) it also has a block heater.

  • The battery is new.

  • Rebuilt 47RH trans with O/D on switch

  • 205 transfer case.

  • Dana 60 front end and 14 full float rear.

  • New brake booster,

  • New power steering pump and vacuum pump.

  • New internal regulator alternator

  • 16 inch wheels with 36" Swamper tires

  • 410 gears but the overdrive helps move it down the road nicely.

    Remaining issues with truck:

  • The tank that the truck is running off of is drivers side- Where you put the nozzle is still the gas size opening. You can still fill up obviously but it takes a little patience. Need to take the neck off and cut out the hole bigger on the inside of the fill tube (not a huge job).

  • I bought brand new mirrors and when I got them, driver side mirror is cracked, I went ahead and installed them. There are two 3/8 holes in each door from the old mirrors that will need addressed before paint.

  • Needs headliner, I have the old one for template.

  • Passenger tank needs converted to Diesel, had plans to install tank in bed and remove original tanks.

  • Transfer case was resealed, output seal leaked and I installed a speedy sleeve on the yoke, seems to have fixed it.

  • It has new rear main seal but was seeping for a while but seems to have stopped now.

  • Electric windows work as should, electric lock works good but unlock only works sometimes May need a switch.

  • The front end is all tight but sometimes you get a wobble at the left front tire, I put balancing beads in tire but still does it sometimes. I would suspect the tire, was going to address that when I bought new tires.

  • No accident history that I'm aware of. could use body mount cushions on the bed.

  • Clear coat was peeling so it was sanded down and primed (grey).

Truckdrives nice, Body in excellent condition and interior is nice. I have only had it in 4x4 once when I offloaded from the trailer the guy brought it to me on from Utah. It is really a nice truck and I have over $21,000 tied up in it to get it where it is right now, but I need to sale to redirect funds to other project.


Any questions please ask.

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