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Picture for category Auxilliary Gear Boxes

Auxilliary Gear Boxes

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Take control of your powertrain with auxiliary gear boxes designed to transfer power from your engine to the axles. Here you’ll find Rubicrawler, Saturn Overdrive and more auxiliary gear boxes that increase the gear ratio of your transmission for more control over your vehicle. With a larger available gear ratio, you’ll be able to choose the appropriate gear for your terrain, leading to a more safe, fun and powerful off-roading experience, even in the most extreme environments.

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Creating Components Since 1971

Whether you’re looking for a better off-road experience or a more streamlined daily driving experience, Advance Adapters has the auxiliary gear boxes and components to help you modify your vehicle to your needs. Advance Adapters has been in the business of creating powerful aftermarket powertrain and four-wheel-drive components since 1971, so the parts and pieces we offer for sale are some of the best in the aftermarket business. The auxiliary gear box components you’ll find here are made using high-tension steel and durable craftsmanship, allowing you to push your vehicle to its limits without fear of breaking or damaging parts. Take advantage of everything your Jeep, truck or vehicle has to offer with the right auxiliary gear box components.

The Auxiliary Gear Box You Need

If you need help deciding what parts and components are right for you or are looking for advice or information when it comes to the installation of an auxiliary gear box, please contact us. Our technical specialists are standing by to answer any questions you might have to help you make an informed decision. Vehicle customization is our specialty, and at Advance Adapters, we manufacture parts and components that will help you repair, modify or improve upon your stock vehicle’s design.

 

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SPLINED SHAFT KIT O/D S/P

Saturn Overdrive splined shaft kit.
$194.68
excluding shipping
911362

SATURN O.D 31T X 10T(FOREIGN)

Saturn Overdrive for Jeeps 1941 to 1971, Mitsubishi Jeep 31 tooth gear 10 spline output

$1,242.00
excluding shipping
915676

THRUST BEARING KIT

Saturn Overdrive thrust bearing kit
$31.00
excluding shipping
912821

SATURN UNIVERSAL SHIFTER

SATURN UNIVERSAL SHIFTER
$93.15
excluding shipping
920003

OVERDRIVE 27 TH 6 SPLINE INPUT

Saturn Overdrive for Jeeps 1941 to 1971, Mitsubishi Jeep 27 tooth gear 6 spline output

$1,242.00
excluding shipping
915678

RUBICRAWLER W/ UNIVERSAL SHIFTER TJ & JK

RUBICRAWLER JEEP TJ or JK W/ UNIVERSAL SHIFTER FOR USE WITH NON STOCK TRANSFER CASES

$2,050.85
excluding shipping
RUBI-UNIV

T90T86 SINGLE LEVER SHIFT

T90T86 SINGLE LEVER SHIFT
$93.15
excluding shipping
920001

SYNCRO RING SERVICE KIT

Saturn Overdrive syncro ring service kit
$38.56
excluding shipping
911317

T14 3SP SATURN SHIFT KIT

T14 3SP SATURN SHIFT KIT
$93.15
excluding shipping
920013

SATURN O.D 29T X 10T(FOREIGN)

SATURN O.D 29T X 10T(FOREIGN)

$1,242.00
excluding shipping
915679

OVERDRIVE M3329-3SP

Saturn Overdrive for Jeeps 1941 to 1971, 29 tooth gear 6 spline shaft

$1,242.00
excluding shipping
915672

T90 DUAL LEVER SHIFTER

T90 DUAL LEVER SHIFTER
$93.15
excluding shipping
920000
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