Chromoly UM07 Marfield, 27-spline

Back by popular demand is the next-generation UM07 Marfield!

These heavy duty replacement Birfield joints are made entirely from 4340 Chromoly steel and are designed to be used with stock inner axles or our Heavy Duty Chromoly inner axle shafts.

Join the whole Marlin Crawler crew as we celebrate our 9th annual Marlin Crawler Round-Up on the Rubicon trail, this September! Last year we had customers from Alberta Canada drive over 1,300 miles to attend our event, so you have no excuse! Mark your calendar, claim your Grand Prize Raffle Ticket by registering before July 15th, and prepare to have a LOT OF FUN ON THE 'CON!!

Chromoly 30-Spline Axle Kit

If you are looking for upgraded front axle components, then you've come to the right place. With today's ultra low range gearing and large tires, it's critical to upgrade your axle's Birfield CV joints and inner axle shafts. To meet this demand, we are happy to offer 30-spline Birfields and Inner Axle shafts for 1979-85 Hilux axles and 1969-1/1990 Land cruiser FJ40 and FJ60/62 axles.

For a limited time we are offering FREE AIR COMPRESSORS when you purchase ARB Air Lockers from us! It doesn't matter if you are buying just the locker or a completely assembled & setup differential. If you buy 1 ARB Air Locker, then we will kick in a free compact compressor, and if you buy 2 ARB Air Lockers, then we will kick in a free full-size compressor and an ARB tire inflation kit!

Team Marlin Crawler is participating in a Race-A-Thon for Land-use for the 2010 King Of the Hammers event! We are now taking pledges to land-use organizations depending on how far our F-Toy makes it in the race! We are giving you the amount to pledge per mile completed and you choose which organization to donate too! This is a fun and exciting way to help keep public lands open to the public!

We invite you to follow our preparation for the upcoming King Of the Hammers event! We are entering our 4-time world champion Formula Toyota, one of only 4 rigs that have completed all four grueling KOH events! Marlin Crawler is gonna kick some butt like always!

Vented Rotor Upgrade Combo Kit

This is our new Vented Rotor Upgrade Combo Kit. This combo kit includes everything you need to upgrade your 1979-85 front Toyota solid axle brake system to vented rotors, larger 4-piston IFS calipers, and semi-metallic brake pads. Convenient and lower priced, this combo kit will upgrade one complete axle.

Lefty - Left Hand Drop Geared Transfer Case

Marlin Crawler is proud to offer the Inchworm Lefty, a left hand drop geared transfer case. We are now a full Tacoma, FJ Cruiser, and Tundra Rock Crawling drivetrain service shop. Our website will soon feature complete drivetrain options for your 1995 and newer Tacoma, FJ Cruiser, or Tundra, 4WD or Prerunner, automatic or manual transmission, 4-, 6-, or 8-cylinder applications. Full installation now available.

New 4.70:1 XD Gear Kit

The long anticipated 4.70:1 Xtreme Duty gear set has finally arrived! This new gear set is truly a work of art. The Xtreme Duty gear set is the most feature rich and most technologically advanced Toyota low range gear set in the world. The Xtreme Duty gear set proves that when it comes to Crawling, there is no substitution to the Marlin Crawler.

Billet Shift Fork, R-series

We are proud to release our all-new high strength 7075-T6 billet aluminum R-series transmission 1st-2nd shift fork.

For R-series 5speed transmissions, this high strength shift fork is much stronger than the stock cast aluminum fork that wears out or even brakes all too often.

Heavy Duty Long Spline Front Driveline

We now carry these Heavy Duty Long Spline Drivelines to suit your single, dual, and triple case needs. Our shafts feature 25% larger splines and 160% thicker tubing than stock!

Available with or without a CV Joint, they feature full length splines for maximum extension and versatility to fit your custom high strength driveline needs.

4.70:1 Competition Chromoly Gear Kit

We are proud to introduce another addition to our highly successful Competition Series product line. These new gears are made with one thing in mind: Pure raw unbridled strength. These babies feature our unbeatable and overwhelmingly successful Total-Spline input technology. Nothing else can compare to a Marlin Crawler!

25mm Steering Upgrade Kit w/ Arms

[PATENT PENDING] Our new Competition Series Steering Upgrade Kit replaces the stock wimpy 17mm pivots with beefy 25mm Chromoly pins. The Marlin Crawler solution to blown up knuckle bearings and sheared pins starts with pivot pins that are 68% larger than stock...

30-Spline Transfer case Output Shaft

[PATENT PENDING] Our new Toyota 1979-95 gear drive transfer case output shaft is the first in the world to feature 30-splines. The increased spline count helps spread the load across the massive shaft diameter of 32mm at its thinnest spot. Additionally, our output shaft is riffle drilled...