For 87-06 Jeep® Cherokee XJ, Wrangler TJ & Unlimited
Quadratec Part No: 52254.104 Manufacturer Part No: 002104303 $1239.99
The Tera Low231 conversion kit is the
solution for providing Wranglers, Cherokees,
and Comanches with low crawl ratios. This kit
provides rock-crawling performance without
affecting high range gears for daily drivers,
or the trip to and from the back country.
It provides a true 4.0:1 reduction through a heavy duty 5 gear planetary system. Every part in this kit is new, with no core charges. Shift linkage and driveshaft length changes are not necessary.
The Tera Low231’s high input torque rating will handle extreme torque applications.
Each Low231 is covered with our exclusive two-year warranty.
The 4.0:1 gear reduction planetary
is the heart of the HD 231 transfer
case. Our planetary features a
hardened steel housing and gears.
TeraFlex is still the only aftermarket
company to offer a low range gear
conversion for the 231 transfer
case.
Because of the additional gear reduction
when in low range, engine
RPMs should be kept under 2500
(remember the planetary is turning
at 4 times that rate 2,500 x 4.0
= 10,000 RPM). Severe transfer
case damage can occur if this RPM
warning is not observed. Check the
oil pump screen for blockage.
Trying to figure your final low range crawl ratio can
sometimes become difficult. There is a zone that is ideal for rock crawling and other off-roading. Generally, a crawl ratio between 50:1 and 75:1 works well in hightraction terrain.
Crawl ratios are calculated by multiplying the axle
ratio by the transmission’s first gear ratio by the transfer case low range ratio. This gives you the final crawl ratio. Generally a final crawl ratio of 50.0:1 to 100.0:1 is a good off-road crawl ratio. This chart shows the improved gear reduction benefits of the TeraFlex Low231 case.
To find your crawl ratio, use this simple formula (refer to the chart). Multiply the first gear ratio by the transfer case ratio. Multiply that number by the axle ratio (of the ring and pinion) to get your crawl ratio.
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The terms Quadratec and Essentials are Registered Trademarks of Quadratec Incorporated, Registered in U.S. Patent and Trademark Office. All manufacturers names, numbers, symbols and descriptions are used for reference purposes only, and it is not implied that any part listed is the product of these manufacturers or approved by any of these manufacturers.
*Jeep, Wrangler, Rubicon, Renegade, CJ, Quadra-Trac and the Jeep Grille Design are registered trademarks of Chrysler LLC. Quadratec, Inc, has no affiliation with Chrysler LLC. Throughout this website and catalog the terms Jeep, Wrangler, MOPAR®, & Rubicon are used for identification purposes only. Geo is a registered trademark and Tracker is a registered trademark of the General Motors Company. Sidekick and Samurai are trademarks of Suzuki Motor Corporation. Amigo is a product of Isuzu Motors Limited. Chevrolet, the Chevrolet Emblem, S Series, GMC, GMC Truck, Chevy, Vortec and Sonoma are registered trademarks of the General Motors Company. Expedition, F-Series, F-150, F-250, F-350, Super Duty and Flare Side are registered trademarks of the Ford Motor Company. All other marks, names, and logos mentioned on this web site are the property of their respective owners.
Throughout this web site all the preceding marks & logos are used for identification purposes only. Quadratec has no affiliation with the Chrysler LLC, MOPAR®, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited. It is not implied that any part listed is a product of, or approved by Chrysler LLC, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited.
Quadratec, Inc. is sometimes mis-searched as Quadartec and Quadratech, we have no affiliation with either.
