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Installing 23,000 Volt Offroad Lights

What are HID Lights?

Onboard Air
Converting a York
AC Compressor
to Pump Air

Warn 9500i Winch Installation

HEI Ignition
Installation & Review

Lockers, Limited Slips &
other Differentials Explained

Jeep Dana 300 TeraLow - 4:1 Gearset for the Dana 300 Transfer Case

Jeep Trans Swap
T-18A Transmission Rebuild & Short Shaft Conversion

For all the Jeep
Fans out there!

Offroad Reports

Jeeps at Rausch Creek
Off-Road Park

Wheeling in the Valley of the Ferns

Paragon Adventure Park
Rock Krawl

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Jeeps in Tellico NC

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J-Series Pickup Trucks

The J-Series Pickups was a full sized pickup truck produced from 1963 until 1987 under several model designations during its production years.   The J-Series Pickup truck model numbers were used to identify the trucks wheelbase and GVW and had changed over the years.

From 1963 until 1964 a 3 digit number was used to identify wheelbase and GVW (gross vehicle weight) of the vehicle. Models were available with a 120" and a 126" wheelbase and most models were available in Thriftside (narrow box), Townside (wide box) and cab & chassis models.  Early models were know as Gladiator pickups.

J-100      panel delivery
J-200   1/2T 5000 GVW (120" wheelbase)
J-210   1/2T 6000 GVW (120")
J-220   3/4T (120")
J-230   1T cab & chassis or stake bed only (120")
J-300   1/2T (126")
J-310   3/4T (126")
J-320   1T (126")
J-330   1T cab & chassis or stake bed only (126")

In 1965 Jeep changed the model number to a four digit number with the exception of the J-100 panel delivery truck.  In 1967 the two wheel drive models were dropped.  In 1970, the Gladiators received the same style grill as the Wagoneer, which was the first styling change since its introduction. 1971 marked the end of the 3000 series and in 1972 the "Gladiator" name was dropped and the J trucks were simply called Jeep trucks.

J-2500      1/2 ton 5000 GVW (120")
J-2600   1/2 ton 6000 GVW (120")
J-2700   3/4 ton 7000 GVW (120")
J-2800   1 ton 8600 GVW (120")
J-3500   1/2 ton 5000 GVW (126")
J-3600   1/2 ton 6000 GVW (126")
J-3700   3/4 ton 7000 GVW (126")
J-3800   1 ton 8600 GVW (126")

In 1970 three new Gladiators models were added to the line-up.

J-4500      1/2 ton 5000 GVW Townside only (132")
J-4700   3/4 ton 7000 GVW Townside only (132")
J-4800   3/4 ton 8000 GVW Townside, cab & chassis or stake bed (132")

In 1974 the model designations were changed to only reflect vehicle load capacity rather than load capacity and wheel base.

J-10      Model 25 being the 1/2 ton 119" WB
J-10   Model 45 was the 1/2 ton 131" WB
J-20   Model 45 was the 3/4 ton 131" WB
J-30   1 ton cab & chassis or stake bed dually



Drive Train


  • Kaiser 230 OHC I6 "Tornado"(63-66)
  • AMC 327 V8 "Vigilante" (65-66)
  • AMC 232 I6 (67-70)
  • Buick 350 V8 "Dauntless" (67-70)
  • AMC 258 I6 (71-end of J truck production)
  • AMC 304 V8 (71-73)
  • AMC 360 V8 2 bbl. (71-end)
  • AMC 360 V8 4 bbl. (74-end J-xx models)
  • AMC 401 V8 4 bbl. (74-end J-xx models)



  • Warner AS-8F 3 speed auto (63 only)
  • GM TH400 (64-79)
  • Warner T-89 3 speed man. 2WD & 4WD >5600 GVW
  • Warner T-90 3 speed man. 4WD up to 5600 GVW
  • Warner T-98A 4 speed manual with 6.32 1st gear
  • Warner T-18 4 speed manual
  • Warner T-18A 4 speed manual with 6.32 1st gear

Transfer Cases

  • Dana 20 (63-79)
  • Borg-Warner Quadra-Trac single & dual range models (73-79)

Front Axles

Front axles were closed knuckle Dana 44 until the J-xx. (Wagoneers used Dana 27A's until '74).

Rear Axles

Rears were Dana 44 in 1/2T, Dana 60 in 3/4T and Dana 70 dually in 1T. Standard gear ratios were 3.90 with optional 4.27 & 4.88 in 1/2 & 3/4T models. 1T models came with 4.88 and had 5.89 as an option. Power-Lok limited slips were optional in all models (rear only)


External Links:

  • Colorado Full Size Jeep Association
    A site dedicated to Wagoneer, Cherokee, J-Series Wagoneers, Cherokees and J-Series Pickups All Full Size Jeeps (FSJ)
  • Project Invasion By Terry Howe
    Project Invasion is a 1975 Jeep J-10 pickup that is being built to accomplish two goals. During the week, the truck will be a work truck to drive around town. During the weekends, the truck needs to be ready to hit the high mountain passes for camping and exploration.  Read More...
    The Jeep Gladiator is a lifestyle pickup with all the capability of the famed Wrangler. It's authentically Jeep, featuring the historic box side-mounted spare of past models. This "flexible utility truck" features an open-air canvas top, an expandable truck bed, and a stowaway rear seat cushion. This is rugged functionality found only in Jeep.
  • Jeep Introduces Gladiator Concept Truck at 2005 NAIAS's review of the Jeep Gladiator Concept Truck - The Gladiator has an open-air canvas roof, removable doors and a fold-down windshield, all features that allow its occupants to feel in touch with the outdoors. Its expandable truck bed and extra storage compartments enhance the concept's cargo carrying abilities. ...more ...
  • The Jeep Gladiator concept car (2005) review from
    The Jeep® Gladiator converts the Wrangler into a pickup truck, bringing up memories of Comanches past. read more ...
  • Jeep Gladiator Concept - Automobile Magazine's Review
    "Gladiator" was the name of Jeep pickups in the 1960s, but this concept actually harkens back further to the more militaristic Jeep Truck of the 1950s. ... read more
  • J-Series Pickup Quick Facts



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Jeep Project CJ-7

An ongoing Budgeted Rebuild/Build up of a Rock Crawling Machine.

Jeep Wrangler JK
Jeep JK Specs

Ramp Travel Index
RTI / Ramp Travel Index What it is and how to calculate it, with and without the ramp. the ramp.


Offroad Tire Info
P-Metric Tire Sizes Conversion to Inches
Tire Terminology
Wheel Terminology
How to Pick the Right
Tires for your Truck
Truck Tire Info
Tires - What Hits What Fits
All Terrain  Mud Terrain
Tire Reviews & Info
Mud Terrain MT Tire Reviews
All Terrain AT Tire Reviews
Super Swamper Bogger
Super Swamper SSR
Super Swamper SX
Super Swamper Vortrac
Interco IROK TSL
Super Swamper LTB
Super Swamper TSL
Super Swamper TSL Radial
Super Swamper Narrow
Interco SS-M16 Swamper
Thornbird TSl Radial
Thornbird TSl Bias
Thornbird TSL
Parnelli Jone Dirt Grip
BFGoodrich Krawler
BFGoodrich MT T/A KM
BFGoodrich MT T/A KM2
BFGoodrich AT TA KO
BFGoodrich Mud King XT
Bridgestone Dueler MT
Cooper Discoverer ST
Cooper Discoverer STT
Cooper Discoverer ST/C
Federal Couragia MT
Firestone Destination AT
Firestone Destination MT
General Grabber MT
General Grabber AT2
Green Diamond Icelander
Ground Hawg Mud Tire
Hankook Dynapro MT
Hankook Dynamic MT RT01
Hercules Terra Trac MT
Hercules Trail Digger MT
Kelly-Springfield Safari DTR
Kelly-Springfield Safari MSR
Kumho Road Venture MT
Kumho Road Venture KL71
Kumho Road Venture AT
Dick Cepek Mud Country
Dick Cepek F-C II
Dick Cepek Fun Country II
Dick Cepek Fun Country Nylon
Dick Cepek Fun Country Kevlar
Mastercraft Courser MT
Mastercraft Courser HTR
Mastercraft Courser HTR Plus
Maxxis BigHorn Radial
Maxxis Creepy Crawler
Maxxis Trepador
Maxxis Buckshot Mudder
Maxxis MA-SW
Maxxis M-8080 Mudzilla
Maxxis MT-754 Buckshot
Maxxis MT-753 Bravo
Maxxis MA-751 Bravo
Maxxis MA-S2 Marauder II
Maxxis MA-S1 Marauder
Maxxis MT-762 BigHorn
Nitto Mud Grappler
Nitto Terra Grappler
Nitto Dura Grappler
Nitto Dune Grappler
Nokian Vatiiva MT
Pit Bull Rocker Extreme
Pit Bull Maddog
Pit Bull Growler
Goodyear Wrangler MT/R
Pro Comp Xterrain
Pro Comp All Terrain
Pro Comp Mud Terrain
Pro Comp Xtreme AT
Pro Comp Xtreme MT
Toyo Open Country AT
Toyo Open Country MT
TrXus Mud Terrain
TrXus STS All Terrain
Michelin LTX A/T˛
Michelin LTX AT2 Press
Michelin LTX AT2
Mickey Thompson MTZ
Mickey Thompson MTX
Mickey Thompson Baja Claw Radial
Mickey Thompson Baja Claw Bias
Mickey Thompson Baja Crusher
Mickey Thompson Baja ATZ Radial SLT
Competition Claw
Dunlop Mud Rover
Federal Couragia M/T
Nitto Dura Grappler
Yokohama Geolandar
Dick Cepek's 2008 F-250 Super Duty Project Vehicle – Project CRUSHER
Mud Tire Reviews

Strange and Unusual Vehicles & 4x4s

Jeep V8 Swap Tips

Offroaders Guide to Gearing up for Offroad
From Basic Equipment to Well Equipped.  An extensive list guide to help you prepare your vehicle for the offroad.

The Jeep Timeline

Jeep road car timeline, 1945 to Present  -  Jeep, A subsidiary of DaimlerChrysler

1940s 1950s 1960s 1970s 1980s 1990s 2000s
5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
Traditional CJ-2A
Wrangler YJ
  Wrangler TJ
                                                                        CJ-8                                   LJ      
                    CJ-5 - 1955-1983                                             Wrangler JK
                    CJ-6 - (stretched CJ-5) - 1955-1981                                                   JK Unlimited
                    Jeep DJ Postal / Dispatch Jeep / Surrey Gala Package                                                  
Mid SUV       VJ
                              C101 C104                                                       Liberty KJ
Large SUV                                     Wagoneer / Cherokee SJ Grand Wagoneer   Gr. Cherokee ZJ Gr. Cherokee WJ Gr. Cherokee WK
                                                                              Cherokee XJ         Commander
Pickup                                     Gladiator Honcho
                                    J-Series Pickups                                            
Truck                       Forward Control
FC-150, FC-170
                                  FJ-3, FJ-3A Fleetvan                                                                    
Crossover                                                                                                                             Compass
Other                           JEEP Concept Vehicles - Experimental, Prototype Concepts