Adjustable Bracket - Universal

Name: Trailer Gear Box Adjustable Bracket - Universal - Adjustable Bracket - Universal
Brand: Trailer Gear Box
SKU: 56405417361574
Price: 24.99 USD
Availability: InStock
Rating: 4.2308 (11 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$24.99

Quantity

Color

Black

Quantity

The Adjustable Bracket expands your mounting range beyond the standard bracket, allowing you to fit larger jacks and handle applications with limited access. With adjustable spacing from 0 to 6.25" and extended 3.75" legs, it provides the flexibility and reach needed for non-standard setups.

4.2

13 ratings

Bent the instant I tried to use it. Didn’t even last 1 second.

Stu · 3 days ago

Gear box won’t fit!

It didn’t work because the gearbox won’t fit on any of my 3 gooseneck trailers! Waste of $350

Anonymous · 9 days ago

works good, not really needed with my jack but have it for maybe a new trailer in the future or moving unit around between different trailers

ken · July 27, 2026

Trailer Gear Box

4.7 (311)

Product description loading

This is the product description text that will appear here.

Trailer Gear Box

Multi-Mount Gearbox - Dual Speed

(41)

$374.99

Trailer Gear Box

Speed Jack - 5k A-Frame

(14)

$179.99

Trailer Gear Box

Standard Bracket - Supermax

$14.99

GusHillUSA Complete Hitch Kit with Dual Ball Hitches Proven Locks

Proven Industries

Adjustable Drop Hitch Kit with Dual Ball & Pintle | 16,000 lb | GusHillUSA

(22)

$275.00

LockNLube

4.7

(9.1K)

LockNFlate Air Chuck, Straight, open flow 1/4" NPT product image

LockNFlate Straight Locking Dual Wheel Air Chuck product image

LockNFlate Air Chuck closed flow 1/4" NPT 90 Degree Alignment

Trailer Jack Drill Adapter with 1/2 Inch Socket for Universal Use

Exclusive offer available

Usa Autoparts Direct

Universal Use Trailer Jack Drill Adapter with 1/2 Inch Socket

$150.00$235.00

Proven Industries

2516-GP

(36)

$345.00

Trailer Tongue Jack Stand Bracket for A-Frame Style (3-Bolt)

Exclusive offer available

Usa Autoparts Direct

Trailer Tongue Jack Stand Bracket (3-Bolt) for A-Frame Applications

$95.00$120.00

Mule Expedition Outfitters

MULE HEAVY DUTY FOUR WHEEL CAMPER JACK BRACKET EXTENSION (Single Bracket)

(1)

$39.99

Two L-shaped brackets standing upright, one behind the other, each with a diagonal brace and a mounting tab at the top.

CARGO CONTROL CENTER

Mounting Brackets for 24in x 24in Trailer Tool Box — Set of 2

$99.75

Set of 3 Mounting Brackets for Truck Tool Box (24"x24")

Exclusive offer available

Usa Autoparts Direct

3-Piece Mounting Bracket Set for 24"x24" Truck Tool Box

$155.00$240.00

TMR Customs USA

4.9

(132)

Boat Trailer Jacks,Snap-Ring Style Swivel Bracket Jack

Exclusive offer available

Hitch Expo

CURT Bracket-Mount Swivel Jack with Top Handle 2000 lbs 15 Inch Travel 28304

$75.99

Set of 4 Utility Trailer Wood Sides Latch Rack Corner Brackets for Stake Body

Exclusive offer available

Usa Autoparts Direct

4-Piece Set of Corner Brackets for Utility Trailer Wood Sides

$35.00$40.00

3-Bolt Trailer Jack Mount Plate for Universal A-Frame (Steel Construction)

Exclusive offer available

Usa Autoparts Direct

Steel 3-Bolt Trailer Jack Mount Plate for A-Frame - Universal Fit

$110.00

Trailer Gear Box

Multi-Mount Gearbox - Single Speed

(21)

$349.99

Trailer Gear Box

Supermax Gearbox - Dual Speed

(1)

$424.99

Plot Blaster

4.7

(35)

Proven Industries

GP-MAX

$599.00

Hallerback Distribution

Trailer Gear Box - 2 Speed Multi-Mount Gearbox

$360.00

Weight Distribution Hitch Support Bracket for Trailer Control (Adjustable)

Exclusive offer available

Usa Autoparts Direct

Weight Distribution Hitch Support Bracket for Adjustable Trailer Control

$105.00$165.00

Proven Industries

Model S251

(18)

$120.00

Trailer Jack Drill Adapter for Universal Use (1/2 Inch Socket)

Exclusive offer available

Usa Autoparts Direct

Trailer Jack Drill Adapter for Universal Fitment - 1/2 Inch Socket

$130.00$160.00

Cross Bar System Kit for Utility Trailer (Universal)

Exclusive offer available

Usa Autoparts Direct

Cross Bar System Kit for Universal Utility Trailers

$370.00$570.00

WR Performance Products

3.8

(7.1K)

WR Performance Hydra Coat Quick Detailer spray for cleaning, shining and protecting vehicles

WR Performance Black Sheep microfiber car drying towel with branded storage bag

Hydra Coat Quick Detailer 3-pack spray bottles for cleaning, shining and protecting cars, motorcycles and boats

WR Performance F3 Fast Foam Filter Cleaner 1-quart refill for ATV, dirt bike and UTV foam air filters

Trailer Jack Foot Plate w/ Lock Pin for Universal Products (Replaces 26029)

Exclusive offer available

Usa Autoparts Direct

Foot Plate for Trailer Jack with Lock Pin - Universal Products (26029)

$30.00$50.00

Proven Industries

25,000 lbs Tow Rating, Hyper Hitches M255 Adjustable Drop Hitch

(5)

$350.00

Nationwide Trailer Parts Ltd

Tuckaway Platform Pull Strap Metal Bracket

£5.42

Trailer Axle Kit for Various Applications (Fits Multiple Models)

Exclusive offer available

Usa Autoparts Direct

Versatile Trailer Axle Kit for Different Applications

$65.00$100.00

Exclusive offer available

HOLODAO

5000 lbs A-Frame Trailer Jack, 15-Inch Vertical Travel, Trailer Lift Jack with Adjustable 7-Level Drop Leg & Drill Socket, Cordless Drill Compatible, Suitable for RV, Utility, Yacht Trailers

$81.88

Proven Industries

4.8

(9K)

Model 2516 2 5/16'' Trailer Coupler Locks Proven Locks

Model 2517-D1 2 5/16'' Trailer Coupler Locks Proven Locks Blue (Billet 6061 Aluminum) Keyed Differently

Adjustable Coupler Bolt Lock Model AC-100 2 5/16'' Trailer Coupler Locks Proven Industries Blue (Billet 6061 Aluminum) Keyed Differently No

Model 2178 2'' Trailer Coupler Locks Proven Locks Blue (Billet 6061 Aluminum) Keyed Differently

Fenton Trading Post

TRAILER GEARBOX - 2 SPEED MULTI-MOUNT GEARBOX, 11:1/3:1 GEAR RATIOS, 8,000 TONGUE LIFT CAPACITY

$374.99

Trailer Gear Box

Standard Bracket - Multi-Mount

$14.99

HHM355 2" Receiver Drop Hitch Hitches Proven Locks

Proven Industries

12,500 lbs Tow Rating, Hyper Hitches M355 Adjustable Drop Hitch

(2)

$240.00

Side Mount Trailer Jack w/Wheel for Universal Fit (1200lbs, 22.4in-33.6in)

Exclusive offer available

Usa Autoparts Direct

Trailer Jack Side Mount with Wheel for Universal Fit (1200lbs, 22.4in-33.6in)

$110.00$170.00

Reliable Aftermarket Parts, Inc®

Trailer Swivel Bolster Bracket - 10" Length 1/2" Bolt

$17.99

Bling Chemicals

(4.9K)

Trailer Jack Crank Handle Cordless Drill Adapter for Universal Use

Exclusive offer available

Usa Autoparts Direct

Trailer Jack Crank Handle Adapter for Cordless Drill - Universal Use

$25.00$30.00

Exclusive offer available

Hitch Expo

CURT 4x 2K Bracket-Mount Swivel Trailer Jack w/ Top Handle and 15" Travel

$260.32

2X Trailer Sway Control Bracket for Equalizer Hitch (6K-14K LB Rated)

Exclusive offer available

Usa Autoparts Direct

Equalizer Hitch Sway Control Bracket 2X (Rated 6K-14K LB)

$140.00$220.00

Set of 2 Heavy Duty Adjustable Roof Rack Brackets for Universal Fit

Exclusive offer available

Usa Autoparts Direct

Heavy Duty Adjustable Roof Rack Brackets - Set of 2 for Universal Fit

$80.00$100.00

Proven Industries

Universal Wheel Boot Model WB-600-2

(5)

$350.00

2X 1300lbs Hydraulic Transmission Jack for Universal Use (0.6T)

Exclusive offer available

Usa Autoparts Direct

Universal Use Hydraulic Transmission Jack 2X 1300lbs (0.6T)

$418.99$460.00

MAXL®

4.6

(8.7K)

5% off

Route One Trailers

18" x 18" / 18" x 24" Aluminum Toolbox Brackets Type 2

$237.00$250.00

Trailer Gear Box

Over/Under Bracket - Universal

(2)

$34.99

SteerClear Mirrors

4.7

(117)

Proven Industries

Adjustable Trailer Hitch Ball Mount for 2" Receiver-GH45900

(2)

$275.00

Flack Jaket

Can Am Defender HD11 All Trims (STRAP) Padded Windshield Protector

$315.00

Side Mount Trailer Jack w/Wheel for Universal Use (2000 lbs, 26-37 in)

Exclusive offer available

Usa Autoparts Direct

Trailer Jack with Wheel - Side Mount for Universal Use (2000 lbs, 26-37 in)

$155.00$240.00

Adjustable Trailer Coupler and Channel Bracket Kit for Trailers (2-5/16")

Exclusive offer available

Usa Autoparts Direct

Trailer Coupler and Adjustable Channel Bracket Kit (2-5/16")

$120.00$150.00

Proven Industries

Model S175

(53)

$120.00

Slide Out Gear Box for RV Trailer (13 Tooth, With Bracket)

Exclusive offer available

Usa Autoparts Direct

RV Trailer Slide Out Gear Box (13 Tooth) with Mounting Bracket

$630.00$790.00

Timbren

4.8

(480)

Exclusive offer available

DURAFORCE

15" Trailer Jack 2,000 Lb Side Wind Bracket Mount with 1/2" Diameter Pin 151159

$137.99

Transmission Jack for Automotive Tools (Universal)

Exclusive offer available

Usa Autoparts Direct

Transmission Jack for Automotive Tools (Universal)

$958.85

Proven Industries

Model 2517-TE1

(9)

$275.00

ukratchetstraps.com

Mounty Fork

(1)

$16.00

Set of 2 Heavy Duty Brackets for Universal Applications (3/8in Thick, 10in x 7in)

Exclusive offer available

Usa Autoparts Direct

Heavy Duty Brackets Set of 2 for Universal Applications (3/8in Thick)

$1,055.00$1,625.00

Adjustable Trailer Winch Mount for 3-4" W x 4" H Tongue (1200 lbs)

Exclusive offer available

Usa Autoparts Direct

3-4" W x 4" H Adjustable Trailer Winch Mount (1200 lbs)

$135.00$170.00

Trailer Gear Box

Handle Bracket - Universal

(12)

$24.99

Trailer Gear Box

Pin Bracket - Universal

(2)

$25.99

Proven Industries

Trailer Coupler with Integrated Lock | 21,000 lb | Hyper Hitches by Proven

(25)

$175.00

EasyUpfit

4.7

(23)

Adjustable Weight Distribution Support Brackets for 10" Trailer Frame

Exclusive offer available

Usa Autoparts Direct

10" Trailer Frame Adjustable Weight Distribution Support Brackets

$105.00$130.00

Proven Industries

Model PL-2

(16)

$200.00

Proven Industries

Wheel Boot Model WB-300

(101)

$300.00

Electric Powered Trailer Jack Kit for Universal Use (12000 lbs)

Exclusive offer available

Usa Autoparts Direct

12000 lbs Electric Trailer Jack Kit for Universal Use

$435.00$540.00

Rear Trailer Stabilizer Jack Stand Kit for Universal Fit

Exclusive offer available

Usa Autoparts Direct

Stabilizer Jack Stand Kit for Rear Trailer - Universal Fit

$1,055.00$1,320.00

Exclusive offer available

Usa Autoparts Direct

Transmission Jack for Automotive Tools (Universal)

$1,333.76

RVTrailerTractor

4.4

(247)

Proven Industries

Universal Wheel Boot Model WB-600

(10)

$450.00

Myhitchcaddy

MHC Universal (adjustable for 2", 2½", 3" receiver hitches)

(2)

$119.97

Mule Expedition Outfitters

MULE HEAVY DUTY FOUR WHEEL CAMPER JACK BRACKET SHORTY EXTENSION (SINGLE BRACKET)

$50.00

Exclusive offer available

California Tools And Equipment

Trailer Jack 2000 Lbs Capacity with Double Wheel

$39.99

50% off

Trailer Gear Box

Drill Adapter (1/2" Drive Socket)

(6)

$5.00$10.00

Trailer Gear Box

Safety Collar

(7)

$14.99

Proven Industries

Model 2517-PX For Apex Brand Cast Adjustable Couplers

(18)

$265.00

Side Mount Trailer Jack w/Wheel for Universal (12.6in-22.8in)

Exclusive offer available

Usa Autoparts Direct

Trailer Jack Side Mount w/Wheel for Universal (12.6in-22.8in)

$100.00$155.00

Adjustable Weight Distribution Hitch Support Bracket for Trailers

Exclusive offer available

Usa Autoparts Direct

Trailer Adjustable Weight Distribution Hitch Support Bracket

$105.00$130.00

Own Boss Supply Co

4.7

(42.9K)

Trailer Jack Support Bracket Kit for A-Frame (3-Bolt Pattern)

Exclusive offer available

Usa Autoparts Direct

A-Frame Support Bracket Kit for Trailer Jack (3-Bolt Pattern)

$120.00$150.00

Adjustable Aluminum Roof Ladder Rack Bracket for Enclosed Trailers (Any Year)

Exclusive offer available

Usa Autoparts Direct

Roof Ladder Rack Bracket - Adjustable Aluminum for Enclosed Trailers

$310.00$390.00

Exclusive offer available

California Tools And Equipment

Trailer Jack 2000 Lbs Capacity

$29.99

Set of 6 Adjustable Roof Rack Brackets for Universal Fit

Exclusive offer available

Usa Autoparts Direct

Universal Fit Adjustable Roof Rack Brackets - Set of 6

$80.00

Proven Industries

Model 2178-A

(348)

$250.00

Proven Industries

10,000 lbs Tow Rating, Hyper Hitches A300 Adjustable Drop Hitch

(14)

$290.00

Bulletpoint Mounting Solutions

4.8

(45.9K)

Exclusive offer available

Hitch Expo

CURT Bracket-Mount Swivel Jack with Side Handle 2000 lbs 10 Inch Travel 28302

$77.99

Height Adjustable Boat Trailer Winch Mount for Universal Trailer Hitch

Exclusive offer available

Usa Autoparts Direct

Boat Trailer Winch Mount - Height Adjustable for Universal Hitches

$175.00$215.00

Adjustable Bracket - Universal

Highlights

Description

Specifications

Reviews4.2(13)

Delivery & Returns

Trailer Gear Box

You might also like

Multi-Mount Gearbox - Dual Speed

Speed Jack - 5k A-Frame

Standard Bracket - Supermax

Adjustable Drop Hitch Kit with Dual Ball & Pintle | 16,000 lb | GusHillUSA

LockNLube

Universal Use Trailer Jack Drill Adapter with 1/2 Inch Socket

2516-GP

Trailer Tongue Jack Stand Bracket (3-Bolt) for A-Frame Applications

MULE HEAVY DUTY FOUR WHEEL CAMPER JACK BRACKET EXTENSION (Single Bracket)

Mounting Brackets for 24in x 24in Trailer Tool Box — Set of 2

3-Piece Mounting Bracket Set for 24"x24" Truck Tool Box

TMR Customs USA

CURT Bracket-Mount Swivel Jack with Top Handle 2000 lbs 15 Inch Travel 28304

4-Piece Set of Corner Brackets for Utility Trailer Wood Sides

Steel 3-Bolt Trailer Jack Mount Plate for A-Frame - Universal Fit

Multi-Mount Gearbox - Single Speed

Supermax Gearbox - Dual Speed

Plot Blaster

GP-MAX

Trailer Gear Box - 2 Speed Multi-Mount Gearbox

Weight Distribution Hitch Support Bracket for Adjustable Trailer Control

Model S251

Trailer Jack Drill Adapter for Universal Fitment - 1/2 Inch Socket

Cross Bar System Kit for Universal Utility Trailers

WR Performance Products

Foot Plate for Trailer Jack with Lock Pin - Universal Products (26029)

25,000 lbs Tow Rating, Hyper Hitches M255 Adjustable Drop Hitch

Tuckaway Platform Pull Strap Metal Bracket

Versatile Trailer Axle Kit for Different Applications

5000 lbs A-Frame Trailer Jack, 15-Inch Vertical Travel, Trailer Lift Jack with Adjustable 7-Level Drop Leg & Drill Socket, Cordless Drill Compatible, Suitable for RV, Utility, Yacht Trailers

Proven Industries

TRAILER GEARBOX - 2 SPEED MULTI-MOUNT GEARBOX, 11:1/3:1 GEAR RATIOS, 8,000 TONGUE LIFT CAPACITY

Standard Bracket - Multi-Mount

12,500 lbs Tow Rating, Hyper Hitches M355 Adjustable Drop Hitch

Trailer Jack Side Mount with Wheel for Universal Fit (1200lbs, 22.4in-33.6in)

Trailer Swivel Bolster Bracket - 10" Length 1/2" Bolt

Bling Chemicals

Trailer Jack Crank Handle Adapter for Cordless Drill - Universal Use

CURT 4x 2K Bracket-Mount Swivel Trailer Jack w/ Top Handle and 15" Travel

Equalizer Hitch Sway Control Bracket 2X (Rated 6K-14K LB)

Heavy Duty Adjustable Roof Rack Brackets - Set of 2 for Universal Fit

Universal Wheel Boot Model WB-600-2

Universal Use Hydraulic Transmission Jack 2X 1300lbs (0.6T)

MAXL®

18" x 18" / 18" x 24" Aluminum Toolbox Brackets Type 2

Over/Under Bracket - Universal

SteerClear Mirrors

Adjustable Trailer Hitch Ball Mount for 2" Receiver-GH45900

Can Am Defender HD11 All Trims (STRAP) Padded Windshield Protector

Trailer Jack with Wheel - Side Mount for Universal Use (2000 lbs, 26-37 in)

Trailer Coupler and Adjustable Channel Bracket Kit (2-5/16")

Model S175

RV Trailer Slide Out Gear Box (13 Tooth) with Mounting Bracket

Timbren

15" Trailer Jack 2,000 Lb Side Wind Bracket Mount with 1/2" Diameter Pin 151159

Transmission Jack for Automotive Tools (Universal)

Model 2517-TE1

Mounty Fork

Heavy Duty Brackets Set of 2 for Universal Applications (3/8in Thick)

3-4" W x 4" H Adjustable Trailer Winch Mount (1200 lbs)

Handle Bracket - Universal

Pin Bracket - Universal

Trailer Coupler with Integrated Lock | 21,000 lb | Hyper Hitches by Proven

EasyUpfit

10" Trailer Frame Adjustable Weight Distribution Support Brackets

Model PL-2

Wheel Boot Model WB-300

12000 lbs Electric Trailer Jack Kit for Universal Use

Stabilizer Jack Stand Kit for Rear Trailer - Universal Fit

Transmission Jack for Automotive Tools (Universal)

RVTrailerTractor

Universal Wheel Boot Model WB-600