1979 GMC Jimmy / Chevrolet K5 Blazer

  • Make: GMC
  • Model: Jimmy
  • Type: SUV
  • Trim: High Sierra
  • Year: 1979
  • Mileage: 151,000
  • VIN: TRK189Z527877
  • Color: Gold/Cream
  • Engine size: 400
  • Number of cylinders: 8
  • Power options: Air Conditioning, Cruise Control, Power Locks, Power Windows, Power Seats
  • Fuel: Gasoline
  • Transmission: Automatic
  • Drive type: 4WD
  • Interior color: Tan/Black/White
  • Options: 4-Wheel Drive, CD Player, Convertible, Leather Seats
  • Vehicle Title: Clear
  • Interested? Contact seller!

1979 GMC Jimmy High Sierra Description

1979 GMC Jimmy High Sierra Package


For sale is a 1979 3 owner GMC Jimmy.Ultra rare truck with every factory option available for 79.I have owned the vehicle since 2003.It is a solid rust free CALIFORNIA truck that spent the first half of its life in sunny Southern California and then was brought to Oregon where we don’t use road salt.It went through a full restoration in the mid to late 90’s at which time the original 400 engine and transmission were rebuilt, also received new OEM doors, new interior, and repainted.In the 2000’s it received many mechanical upgrades including heavy duty ¾ ton axles.

This is a very reliable vehicle that I used, cared for and drove for many years and would not hesitate to take it absolutely anywhere. As I built the truck no corners cut or expenses spared. Each component was carefully chosen to make a reliable capable classic 4x4. It is not a show truck but could be with a refreshed paint job. It is a go anywhere and get home again off road vehicle with its front and rear lockers, heavy duty axles, winch, etc. but shows almost as well as a pavement princess. This truck was my pride and joy for many years but it is time to move on and let someone else enjoy it. Bid with confidence, this is the real deal.

It is equipped with 400 CI engine, optional 31 gal. fuel tank, power windows, power locks, power rear glass, Air conditioning, cruise control, factory engine oil cooler, Trailering Special package, soft ray glass, sliding side top windows, delay wipers, factory tachometer, and tilt column.

See the list below for everything done to this amazing Jimmy and just how much time and money went in to build this vehicle.

6” Tough Country all spring lift (no lift blocks)

Bilstein long travel 5200 series gas shocks brand new

Off Road Design fully greasable heavy duty front shackle kit and front spring eye greaseable bushing kit

Off Road Design zero rate rear leveler kit with new pins

Dana 44 front axle converted to 8 lug with late model hubs and spindles

Yukon 4130 Chromoly front axles (Lifetime Warranty)

New Heavy duty steering stabilizer kit

Newer 4.10 gears

Front Detroit Locker

ORD crossover steering kit with new 2wd steering box and drop arm

ORD frame brace kit at steering box (No frame cracks)

Purple Cranium Rock Spider front diff guard

Heavy duty Off Road Design “ROCK ROD” tie tod

All new one ton Dodge front steering joints

New Spicer upper and lower ball joints

CTM 300m indestructible greasable lifetime front axle u-joints with full circlips

New brake calipers and pads

Warn Premium Locking Hubs

Pro Comp Stainless braided front brake lines

Rear Axle:

14 Bolt Full Floater rear axle 4.10 gears with Detroit locker

Rebuilt with all new bearings, seals in 2012

Sky Manufacturing rear disc brake kit with new rotors and calipers in 2015

Stainless braided rear brake line

Purple Cranium heavy duty Rockcrusher diff cover

Spicer heavy duty greasable driveline ujoints

Transfer case 2” drop kit with Energy Suspension urethane mounts


Entire interior tub stripped and sprayed in Linex. SOLID floor pan no rust!!

1999 Suburban Leather seats (power driver side seat with lumbar) The leather is cracked on the front seats but they have new camo covers on them.

1999 Suburban rear bench seat, excellent condition with seat belts, attached with quick release factory brackets to remove entire seat. Old armrests converted to work with new seat.

Last year entire cab lined with Fat Mat sound dampener, new jute padding, new rubber floot mat

New heater core

New a/c evaporator core


Factory 400 CI small block completely rebuilt with RV cam and new pistons and bearings in mid 90’s.

All Fel-Pro steel shim urethane gaskets, one piece oil pan gasket, new oil pump with steel drive shaft, new rear main seal

Newer HEI distributor with new heavy duty plug wires

HEI ignition recurve kit and new vacuum advance module

Just installed professionally rebuilt 800 CFM quadrajet with electric choke conversion

Factory Valve covers repainted

Edelbrock Performer aluminum intake

Hooker Competition headers

3” single Aluminized exhaust with Hooker Muffler and Catco catalytic converter, with drop out center section for easy transfer/trans removal

All factory vacuum lines, evap can, cold air intake with late model “tall” air cleaner assembly, (can pass state emission tests)

New a/c compressor

New a/c receiver

System has been converted for r-134a (A/C needs to be charged)

Dual Optima batteries wired in parallel

Heavy duty late model CS-130 120amp alternator conversion

New fan clutch

4 core heavy duty radiator

New Hoses

New Belts

New power steering pump

New water pump

Heavy duty ¾ ton truck master cylinder and power brake booster


TH350 with B&M stage 1 shift kit

NP 203 transfer case with factory bracing kit

Transfer case has Milemarker freewheeling kit for 2wd operation (eliminates the fuel sucking full time 4wd)

Auxillery cooler

Inline fluid filter

Transmission is sometimes lazy to go into gear on cold mornings(bad torque converter input shaft seal allows torque converter to drain off over-nite) With that being said it has been like this since the day I bought it over 13 years ago and has never caused any issues. Vehicle runs and drives perfect and shifts thru all gears perfectly.


All factory trim and badging is on and in good shape

Absolutely no dings or dents in entire vehicle

No rust (very small area of a bubble where top meets the cab corner pass. side and one area of very minor surface rust on passenger side rocker panel size of a quarter-see pic) This is probably one of the straightest rust free Jimmy’s you will ever find in this price range.

Was professionally repainted in mid 90’s with PPG base coat PPG clear coat.The paint is showing it’s age consistent with use (this is a driver) and clear coat has peeled in places on the hood, there are rock chips on the rockers, and has nicks and chips here and there. There is a large paint chip off area on the passenger side front fender top that happened in an ice storm-see pic.)

Doors replaced with new OEM doors with new window regulators, motors, and lock mechanisms in 1996, all work perfectly.

All glass is good no cracks or chips

Rear window drive cable replaced

Fiberglass topper was sanded smooth and also repainted. No cracks in top. Side slider windows work.

Custom front and rear extra heavy duty steel bumpers built for this truck by a local welder.

Warn 8274-50 8000lb. winch with new solenoids and upgraded Warn motor and brand new style controller. Custom heavy duty power cables to two optima batteries. Winch is mounted so it cannot be unbolted easily and stolen.

Rear 2” receiver hitch

Factory heavy duty front tow hooks

Hella rectangular driving lights wired to illuminted dash switch

Hella H4 headlight conversion kit (super bright)

Cobra CB with weather channels wired to 102” stainless whip antenna

New 6x9” speakers in boxes bolted to rear fenders

High Lift Jack mounts for mounting large off road jack inside vehicle

Brand new Hankook 315/75-16 Dynapro Mud tires mounted on Factory Chevy 16x9” white wheels with correct Chevy hubcaps. Less than 1500 miles on tires

Rear mud flap guards

Carr Hoop steps under doors

All Energy Suspension body mounts

On board 12v air compressor under hood-Fill tires, water toys, etc.

Everything on this vehicle works as it should.I even reworked all the ducting diverter doors and vacuum actuators for the a/c and heater system.The cruise control does work and is all hooked up, the actuator button on the column is a little worn so sometimes you have to press it a few times to set the speed.A/C needs charge, but system has been sealed and will function with a recharge.

Truck is located near Portland, Oregon area.Buyers sole responsibility to arrange pickup and shipping. $500 deposit due to PayPal within 24 hours of winning bid.