Best Reverse Gearbox For Golf Cart: 10 Options Compared

#1 · Best Overall

1. 91.SCS ATV Reverse Transmission Gear Box

Best for: Complete 4WD drivetrain projects.

Why it ranks #1: It explicitly lists golf carts and combines a reverse gearbox, differential housing, and 720mm drive shaft for a 4WD drivetrain build.

A reverse gearbox, differential axle housing, and 720mm rear drive shaft arrive as a combined system for a 4WD off-road vehicle project. The 91.SCS assembly names golf carts alongside go-karts, ATVs, UTVs, quads, and buggies, while its stated engine range spans 125cc to 300cc for builders assessing application fit.

The included 28.4-inch drive shaft and differential housing case give builders key rear-drivetrain components in one package, which can simplify planning a coordinated 4WD conversion. The built-in reverse function is specified as requiring no gear shifter installation, reducing the need to plan for a separate shifter installation. Alloy-steel construction is listed for rugged off-road use. Buyers should match the shaft length and stated 125cc–300cc engine range to their vehicle layout.

Skip it if you have an engine below 125cc; this assembly is listed for 125cc–300cc applications.

Consider this package for a 4WD golf cart or off-road build that needs a rear shaft, differential housing, and reverse function together. Its 28.4-inch shaft and engine range are important layout boundaries.

Listed on Amazon as: ATV Reverse Transmission Gear Box & 720mm (28.4") Rear Drive Shaft & Differential Housing Gearbox Case for 4WD Go Kart, ATV, UTV, Quad, Buggy, Golf Cart, 4 Wheelers 125cc 150cc 200cc 250cc 300cc

#2 · Best CG Engine Fit

2. Shilohkart CG Reverse Gearbox

• Package Dimensions: 1 x 1 x 1 in
• Weight: 7.83 lb

Best for: Vertical CG engine conversions.

Why it ranks #2: The shaft-drive conversion is listed for CG-series 150cc–300cc engines and golf carts, with built-in reverse and no separate gear shifter.

A built-in reverse mechanism that needs no gear shifter gives the Shilohkart gearbox a simpler control approach for a shaft-drive conversion. It is listed for CG-series 150cc–300cc motorcycle engines and has two gears described as F-N-D, giving builders an engine-family and operating-mode basis for evaluating it in an ATV, UTV, quad, or golf-cart project.

The stated CG-series compatibility spans 150cc, 200cc, 250cc, and 300cc engines, which helps buyers narrow the intended engine family rather than assume universal fit. Its shaft-drive conversion role and built-in reverse, which needs no gear shifter, shape the drivetrain and control layout. The package lists one reverse gearbox. The additional description specifies vertical engines and metal gears and housing, so orientation and engine type remain important fit considerations.

Skip it if you have a non-CG engine; the listed compatibility is for CG-series engines.

This gearbox suits a shaft-drive conversion using a listed CG-series engine and a layout that benefits from built-in reverse without a separate shifter. Check engine orientation and the stated displacement range before planning the build.

Listed on Amazon as: Forwards Backward Reverse Gearbox for CG series 150cc 200cc 300cc UTV ATV Quad Go Cart Golf Cart Buggy Converter

#3 · Best GY6 Fit

3. QuilxyzCart GY6 Reverse Gear Box

• Package Dimensions: 30 x 22 x 15 in
• Weight: 20 lb

Best for: GY6-powered 4WD builds.

Why it ranks #3: This assembly explicitly targets 4WD vehicles including golf carts and is designed for 100cc–300cc GY6 engines.

Forward-and-backward conversion for 4WD vehicles with 100cc–300cc GY6 engines makes this QuilxyzCart assembly a clearly bounded choice for off-road drivetrain projects. Its metal gearbox is listed for ATVs, UTVs, go-karts, and golf carts, while the stated fitment and shaft-driven reverse function help buyers assess whether it belongs in their vehicle plan.

The 100cc–300cc GY6 fitment identifies both an engine family and displacement range, helping narrow compatibility for a 4WD build. Forward-and-backward conversion adds the two stated travel directions, while the assembly is described as shaft-driven and made of metal. The listing also calls out easy installation, but provides no specific shaft dimensions in the supplied facts. Buyers should therefore plan around the documented GY6 range and confirm the vehicle's 4WD arrangement.

Skip it if you have an engine outside the 100cc–300cc GY6 range; this assembly is listed for that fitment only.

Choose this assembly for a 4WD ATV, UTV, go-kart, or golf cart using a GY6 engine within the stated range. Its engine-specific fitment and shaft-driven arrangement are the main boundaries to consider.

Listed on Amazon as: Reverse Gear Box Assembly for 4WD ATV, UTV, Go Kart, Golf Cart – Forward & Backward Conversion for 100cc-300cc GY6 Engine

#4 · Best Axle Bundle

4. LenvraSQ Rear Differential Axle Assembly

• Package Dimensions: 1 x 1 x 1 in
• Weight: 1 lb

Best for: Custom shaft-drive builders.

Why it ranks #4: The package combines a 29.6-inch differential axle, 11:38 gearbox, 16.7-inch drive shaft, reverse gear, and hydraulic brake.

A combined differential axle, reverse gear, drive shaft, and hydraulic foot brake makes this LenvraSQ assembly a drivetrain-oriented choice for a custom four-wheel build. Its approximately 29.6-inch axle width and 16.7-inch, 6T drive shaft establish important layout dimensions for builders planning a shaft-driven golf cart or similar vehicle.

The 11:38 differential gear box and 29.6-inch approximate axle width help define the rear drivetrain arrangement, while the 25mm axle ends with 6T splines and about 40mm exposed spline give builders specific wheel-side connection details to assess. A 16.7-inch 6T drive shaft is included with the reverse gear and hydraulic foot brake. Together, these named components suit a build planned around a matched rear axle assembly rather than a standalone gearbox.

Skip it if you need a rear axle narrower than approximately 29.6 inches; this assembly's stated width exceeds that layout.

Consider this assembly for a custom shaft-driven four-wheel vehicle whose rear layout can accommodate the listed axle width and shaft length. The spline dimensions and hydraulic brake are key integration points to plan around.

Listed on Amazon as: 29.6in Rear Differential Axle Assembly with 11:38 Gear Box, 16.7in 6T Drive Shaft, Reverse Gear & Hydraulic Brake for Gas Go-Kart ATV Quad UTV Buggy Golf Cart Four Wheeler (With 16.7" Drive Shaft)

#5

5. maXpeedingrods 30 Series Gearbox

• Weight: 12.35 lb

Best for: 30 Series chain flexibility.

Why it ranks #5: It supports engines up to 14HP and includes 12T #35 and 10T #40/41/420 sprockets, but is specified for 30 Series applications.

Included 12-tooth sprockets for both #35 and #40/41/420 chain let builders choose between two listed chain setups without sourcing those sprockets separately. The maXpeedingrods 30 Series gearbox also gives its shaft size, keyway, ratios, and cable length, making it a specification-led option for a go-kart or utility-vehicle conversion.

The 5/8-inch shaft with a 3/16-inch keyway supplies concrete dimensions for checking the engine-side connection, while the 1540mm shifter cable helps estimate routing to the driver controls. Forward and reverse ratios are listed as 1:1.3 and 1:2.6, respectively, and the gearbox speed is stated as 5/13 of clutch speed. Its up-to-14HP application and two included sprocket options make engine and chain matching central to the buying decision.

Skip it if you have a 40 Series setup; this gearbox is explicitly limited to 30 Series use.

This kit suits a builder who wants defined shaft dimensions and included sprocket choices for a 30 Series installation. Its stated 14HP ceiling and chain options should guide engine and drivetrain matching.

Listed on Amazon as: maXpeedingrods Go Kart Forward Reverse Gearbox Kit 212cc 30 Series

#6

6. JNDO 30 Series Gearbox Kit

• Package Dimensions: 8 x 7.8 x 7.5 in
• Weight: 12.1 lb

Best for: DIY builders needing reverse.

Why it ranks #6: Its forward, neutral, and reverse modes and stated support for engines up to 13HP suit a compatible clutch-driven build, not every golf cart.

Forward, neutral, and reverse selection gives a basic go-kart a way to back out of tight spaces instead of relying on forward-only movement. The JNDO 30 Series kit is specified for engines up to 13HP or 420cc, making its engine range and three-position operation the clearest considerations for builders planning a reverse-capable setup.

The three shift modes let a driver select neutral when stopped and reverse when repositioning, while forward remains available for normal travel. Its stated support for engines up to 13HP (420cc) gives builders a defined power ceiling when matching it to an engine. JNDO identifies this as a 30 Series kit, so series compatibility matters during selection. The listed aluminum-alloy construction and 12.1-pound item weight also help buyers assess the unit as part of a DIY assembly.

Skip it if you need published shaft and sprocket dimensions before choosing; this listing does not provide those details.

Choose this JNDO kit for a DIY go-kart build that needs three-position control and falls within the stated engine limit. Check that the vehicle uses a compatible 30 Series arrangement before planning installation.

Listed on Amazon as: JNDO Go Kart Forward Reverse Gearbox Kit 30 Series for 212cc 420cc Engine

#7

7. JNDO Gearbox and Torque Converter Kit

Best for: All-in-one converter builders.

Why it ranks #7: It includes a gearbox and Super 30 Series torque-converter components, including 12T #35 and 10T #41/40/420 sprockets.

A torque-converter kit bundled with a forward-reverse gearbox brings major drive components together for a builder assembling a go-kart drivetrain. JNDO includes a 3/4-inch-bore driver, 5/8-inch-bore driven unit, back plate, asymmetrical belt, and two sprockets, giving buyers a more complete parts package to organize around their installation.

The supplied driver and driven bores provide specific dimensions for assessing the converter components against the build, while the back plate and mounting hardware address assembly needs. An asymmetrical drive belt is included, and the package supplies both a 12T #35 sprocket and a 10T #41/40/420 sprocket for different listed chain choices. The gearbox and shifter lever come with 61-inch cables, so buyers can plan control placement around that stated cable length.

Skip it if you need a cable longer than 61 inches for your control layout; the supplied length may not reach.

Pick this package if you want a gearbox and listed torque-converter components together for a DIY go-kart assembly. Account for the 61-inch cables and verify the supplied bores and sprockets suit the build.

Listed on Amazon as: JNDO Go Kart Forward Reverse Gearbox Kit + Super 30 Series Torque Converter Kit

#8

8. Silscvtt 30 Series Gearbox

• Weight: 12.35 lb

Best for: 30 Series three-mode control.

Why it ranks #8: The 30-series unit supports engines up to 13HP and lists a 5/8-inch shaft, 3/16-inch keyway, and 35 or 40/41/420 chain options.

Forward, reverse, and neutral selection gives this Silscvtt 30 Series gearbox a practical answer to tight-space maneuvering on a go-kart. It is specified for engines up to 13HP and provides a 5/8-inch driven-clutch shaft with a 3/16-inch keyway, giving builders concrete limits and connection details to assess before installing it.

The three shift positions let the operator choose neutral or reverse as well as forward, while the 1540mm cable length helps estimate the route from gearbox to controls. A 1:1.3 forward ratio and 1:2.6 reverse ratio are listed, along with 2300 RPM. Its 5/8-inch shaft and 3/16-inch keyway provide a specific connection reference, and the stated compatibility with 12T #35 or 40/41/420 chain helps narrow drivetrain matching.

Skip it if you need a 40 Series gearbox; this product is limited to 30 Series use.

This gearbox fits a builder seeking three-position control for a 30 Series kart with an engine within the 13HP limit. Its chain options, shaft dimensions, and cable reach are the practical installation checks.

Listed on Amazon as: Silscvtt 30 Series Go Kart Forward Reverse Gearbox

#9

9. GXYWADY 40 Series Gearbox

• Package Dimensions: 13.3 x 9.85 x 9.75 in
• Weight: 20.8 lb

Best for: Higher-power 40 Series swaps.

Why it ranks #9: It targets 11HP–18HP engines and lists a 3/4-inch jackshaft and 12-tooth 530-chain sprocket, but is a go-kart replacement.

A 40 Series replacement specified for 11HP–18HP engines targets a different power and installation class from smaller kart gearboxes. GXYWADY lists Predator 420cc and Duromax 11HP-and-over engines among its fitments, with a 3/4-inch jackshaft and 12-tooth sprocket for 530 chain, making those dimensions central to replacement planning.

The stated 11HP–18HP range and named Predator 420cc and Duromax applications give buyers a defined engine-use target. Its 3/4-inch jackshaft with a 3/16-inch keyway supplies an important connection dimension, while the 12-tooth sprocket is specified for 530 chain. The listed forward ratio is 1:2 and reverse ratio is 1:2.6. At 20.8 pounds, its listed weight is also relevant when planning handling and mounting during a replacement.

Skip it if you use a chain other than 530; the supplied 12-tooth sprocket is listed for 530 chain.

This replacement suits builders with a listed higher-power engine and a 40 Series application using the specified jackshaft and chain arrangement. Treat its 530-chain sprocket and stated ratios as key drivetrain constraints.

Listed on Amazon as: GXYWADY 40 Series Forward Reverse Gearbox Replacement for Go-Karts

#10

10. ALL-CARB Forward Reverse Gearbox

• Weight: 12.28 lb

Best for: Compact 30 Series conversions.

Why it ranks #10: This 5/8-inch-shaft gearbox is listed for 2HP–13HP engines and go-karts or utility vehicles, with no specific golf-cart fit stated.

A 5/8-inch shaft, 3/16-inch keyway, and 51.18-inch shifter cable give the ALL-CARB gearbox several practical dimensions for planning a compact conversion. It is listed for 2HP–13HP engines and offers forward, neutral, and reverse selection, making it relevant to go-karts, utility vehicles, and other off-road applications within that range.

The 2HP–13HP engine range defines the stated application, and the 30 Series references alongside 10T #40/41 and 12T #35 options help buyers assess drivetrain matching. A 1:1.3 forward ratio and 1:2.6 reverse ratio describe the listed gearing, while the 51.18-inch cable helps with shifter-routing plans. The 5/8-inch shaft and 3/16-inch keyway provide connection dimensions, and the three positions allow forward travel, neutral, and reversing.

Skip it if you need a gearbox for an engine above 13HP; this unit's listed range stops at that output.

Choose this gearbox for a smaller-engine go-kart or utility-vehicle conversion that matches its listed shaft and chain arrangements. Its 13HP ceiling and cable length should be checked against the planned engine and control layout.

Listed on Amazon as: ALL-CARB Go Kart Forward Reverse Gearbox Replacement for 2HP-13HP