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Offroad Tire Info
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Tires for your Truck
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Offroad Tires
All Terrain
Mud Terrain
& Information

All Terrain  Mud Terrain Tire Reviews & Information
Mud Terrain Reviews
All Terrain Reviews
Super Swamper Bogger
Super Swamper SSR
Super Swamper Vortrac
Interco IROK TSL
Super Swamper LTB
Super Swamper TSL
Super Swamper Narrow
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
Firestone Destination MT
General Grabber MT
General Grabber AT2
Green Diamond Icelander
Ground Hawg Mud Tire
Hankook Dynapro MT
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
Maxxis Creepy Crawler
Maxxis Trepador
Maxxis Buckshot Mudder
Nitto Mud 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 MT
TrXus Mud Terrain
TrXus STS All Terrain
Mickey Thompson MTZ
Mickey Thompson MTX
Mickey Thompson Baja Claw
Mickey Thompson Baja Crusher
Competition Claw
Dunlop Mud Rover
Yokohama Geolandar

Jeep Project CJ-7

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

Jeep Central
From Jeep History to Tech Specs and Projects.  This section is all about Jeeps.
Jeep Technical Info
Engine Swaps

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

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




NP205 LoMax 3-to-1  Gear/Case Kit

NP205 LoMax 3-to-1  Gear/Case Kit
Info and Reviews



JB Conversions has developed a brand-new NP205 design nodular-iron case, as well as the larger LoMax 3:1 gears that go inside it. JB Conversions began their success by offering high-strength gearsets for the Dana 300 several years which was also marketed under the LoMax brand name.  The NP205 LoMax Gear/Case kit comes with a new case, cover, and five full gearsets.

The new gear sets are manufactured to high tolerances using 8620 alloy standard to the gear industry. Heat treat processes and hardening are being performed to exact New Process Gear specifications as dictated by the original OEM NP205 drawings.

The new LoMax gear case is a high quality ductile iron casting. The new case is fully compatible with the stock NP205 shift forks, output shafts, shift rails, bearing retainers, etc. The GM round pattern (6 bolts) and the long 8-bolt pattern are present in the front face of the case. Although not shown in the front view photo above, alternate bolt holes will be provided to allow an upward rotation of the new case. Our goal is to provide the owner of a stock GM NP205 with a new case that will directly replace the original with no changes to driveshaft length, shifter linkage, etc.

When totally assembled, the LoMax 205 weighs in at 135 lbs. The bottom inspection cover is equipped with an optional mounting boss to accompany the side mount common to the stock GM case.

Kit Components:

  • Nodular iron case
  • LoMax 3-to-1 Gear Set (5 total)
  • Case Cover with bolts
  • (4) Nylon plugs 3/8"
  • (4) Nylon plugs 5/16"


Input Gear Applications:

  • GM 32 Spline
  • GM 10 Spline
  • Ford applications NOT available



  • 32 Spline Front Output Shaft
  • 32 Spline Rear Output Shaft
  • Rebuild Kit

JB Conversions

Bolt Patterns:
(passenger side front output only)

  • GM 6-Bolt Round Pattern
    (2 patterns allow "clocking" choices)
  • GM Figure 8 Pattern
    (common to SM465 applications)
4Wheel & Off-Road Magazine Reviews the LoMax 205
LoMax Transfer Case - 3:1 Low-Range NP205 The Ultimate Bogger Transfer Case

Beef up the Dana 300
The original Dana 300 rear output shaft is not as strong as it could be. 4-to-1 gears, larger tires, and V8 engines have been responsible for many OEM shaft failures on stock Dana 300's.

Rock Crawler dot com's Review of the LoMax Dana 300
Comparing the LowMax gears to stock Dana gears, Install Review

Upgrading a Dana 300 With JB Conversions
LowMax installation high points, and independent opinion

JB Conversions Lomax 4 to 1 Gearset
JB Conversions LoMax kit Installation, Review

Transfer Case Option including LowMax
There are several modifications that can be performed on a transfer case.

NP205 LoMax 3:1 Gears From JB Conversions
Available as a kit and as a completely assembled LoMax 205 transfer case.

 LoMAX™ 300 By JB Conversions
Compare the differences between the AtlasII and a LoMax equipped Dana 300

JB Conversions LoMax 300 Dana 300 4:1 Gear Set
Jeepfan.com Information and Review



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4x4 Products Information and Reviews Directory        Back to Main Page


Air Compressor Systems
Air Down
Air Intakes
Battery / Power Options
Body Armor

Cool Tools
Drive Train
Winches and Recovery
Lift Kits
Offroad Lights
Onboard, Portable Welders
Security and Storage
Trailering - Towing
Tire Tech
Just Plain Cool Items
Air Compressor Systems

ARB Compact On-Board Air Kit

Power Tank Comp Series

Inflation Zone Tornado Portable Air Compressors

Kilby AirBoss Onboard Air

Tornado Portable Air Compressors

Oasis HP1000 Air Compressor

Warn PowerPlant? Dual Force HP

Warn PowerPlant Dual Force HD

Smittybilt XRC10HD Winch

Onboard Air Converting a York
AC Compressor to Pump Air

ViAir Onboard Air Compressors & Systems

Warn Air-Power VTC, SPC, SPI


Onboard, Portable Welders

Miller Passport Plus Portable MIG Welder

Mobi-Arc 200x Onboard Welder

ZENA Mobile DC Welder

Premier Power Welder


Winches and Recovery

Offroad Trail Tools Wheel Chokes

WJQ-308 Multifunctional Shovel

PillowTrack Offroad Traction and Recovery

Warn Endurance 12.0 Winch

BajaBuster? by GarageMate?

Smittybilt XRC10HD Winch

Warn PowerPlant? Dual Force HP

Warn PowerPlant Dual Force HD

WARN 9.0Rc Rock Crawling Winch

Smittybilt Winch Anchor Support Platform W.A.S.P.

More Power Puller Hand Winch

Maasdam 4-Ton Pow'R-Pull Come Along

Bushranger X-Jack Exhaust Gas Vehicle Jack

Amsteel Blue Synthetic Winch Line

SlingMax Slings

ARB Snatch Block 9000



Holley Truck Avenger Carburetor

Optima RedTop Battery

Optima YellowTop Battery

Pulstar Spark Plug -  Pulstar Spark Plug PR

FAST? Dual-Sync Distributors


Lift Kits

Black Diamond JK Lift Kits

Black Diamond JK Lift Kits Press Release

Poly Performance JK Lift Kits

JK Lift Kits - Skyjacker Jeep JK Lift Kits

Rancho Jeep JK Lift Kits

Rubicon Express Jeep JK Lift Kits

Skyjacker JK Lift Kits

Superlift JK LIft Kits

Teraflex Jeep JK Lift Kits

Jeep TJ Long Arm Suspension Lift Kits by Superlift

2008 Superlift Catalog Now Available!


MasterCraft Grab Handles

MasterCraft Performance Seats and Accessories for the Polaris RZR

Just Plain Cool Items

InstaCloth by Heininger Automotive

Air Intakes

ARB Safari Snorkels

Edge Trail Jammer Performance Kit

Jeep JK K&N Air Intake


Cool Tools



Body Armor

Poison Spyder Rocker Knockers

ARB Differential Cover


Battery / Power Options

Kilby Dual Battery Tray

Optima RedTop Battery

Optima YellowTop Battery


Air Down

Staun Tire Deflators



GoPro HERO Digital Camera Systems - HERO Wide

Garmin Astro 220 GPS Dog Tracking System 


Offroad Lights

Lightforce Offroad Lights


Drive Train

Powertrax No-Slip Traction System

Mattracks LiteFoot ATV/UTV Track System

Dynatrac Axle Assemblies

OX Heavy Duty U-joints

Yukon Super Joints

New Dynatrac Pro Rock 60 Axle Housing

NV4500 Manual Transmission

NV4500 Manual Transmission Exploded View

Klune V Extreme Underdrive

Klune-V 4-to-1 Under-Drives Now
Available With Ford 31-spline Input

OX Trax Locker

Tera Low 20 for the Dana 20

LoMax for the Dana 300

NP205 LoMax 3-to-1 Gear/Case Kit


Security and Storage

The Security Box

GunVault Firearm, Valuables Safe

Tuffy Security Consoles


Trailering - Towing

Hell Ya Hitch Helper

Tekonsha P3 Brake Controller


Tire Tech

Staun Internal BeadLock

Mud Terrain Reviews

All Terrain Reviews