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Leonard Truck & Trailer, Inc., Ohio

Winston Trailers ProSeries Gooseneck Dual Tandem

Winston Trailers ProSeries Gooseneck Dual Tandem for sale at Leonard Truck & Trailer, Inc., Ohio

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Winston Trailers ProSeries Gooseneck Dual Tandem for sale at Leonard Truck & Trailer, Inc., Ohio

Trailer Line ProSeries Gooseneck Dual Tandem

Winston Dual Tandem Gooseneck Trailers are available in 10, 12 Ton Models. These are the Ultimate Gooseneck Trailers designed to haul all types of freight, materials and equipment. Low Profile Design with high quality components produce easy towing trailers of rugged reliability.



5 position Adjustable Pintle Hitch

Breakaway Kit with Charger

Cold Bent Long Radius Tongue

8 Lug Hub Piloted Bud Type Wheels

Lockable Tool Box in Tongue

Double Hinged HD Ramps with Large Sand Pads

Step on Driver Side

Spring Assist Ramps

Oak Floor Staggered Where Joined

Stake pocket with Rubrail Tie Downs

Heavy Duty Adjustable Suspension

Sealed Modular Wiring Harness

48.5" Spread Axle Equalized Suspension

Lifetime LED Lighting

Dexter Axles Oil Bath Axles

PPG Epoxy Primer

Forward Self Adjusting Electric Brakes

PPG Modified Alkyd Enamel

Construction: Winston Trailers uses Pierced Unitized construction with Cross Frame Reinforcement and Suspension Manufacturer's recommended hanger bracing. This design produces a strong platform for transporting you equipment.

CNC Pierced Main Frame: One piece 12" Hi-Tensile I-Beams are CNC Plasma pierced for precise clean cuts with extreme consistency.

Cross Frame Reinforcement: Cross members are inserted through the pierced frames, with belly braces and side bracing provide the unitized frame. Add suspension manufactures recommended hanger bracing produces a frame with ridged stability.

Suspension Difference: Winston Trailers 10 Ton Suspension is different from other manufactures.


Now Standard Feature on 10 Ton ProSeries Trailers

Full 3" Wide Rubber Bushing Heavy Duty Springs

  • Winston Trailers uses Suspension Upgrades others Don't.
  • Rubber Bushing Spring Eyes Never Have to be Greased.
  • Spread Axle Equalized Suspension Provides Larger Footprint for Better Load Balance.
  • 1/2" More Tire Clearance than other Suspensions at Full Load Conditions.
  • Adjustable Suspension Feature for True Tracking and Easy Alignment.

In lieu of a 2 ½ wide spring Winston uses a Heavy Duty 3" wide multi-leaf spring with rubber eye bushings. These spring outperform others buy adding ½" more tire clearance when loaded. These springs and equalizers never have to be greased because of the HD rubber eye bushings. Long Equalizers provide a larger footprint for balance and towing. Also added are adjusters for easy adjustability of alignment and tracking.



10 Ton - AG21025EL

12 Ton - AG21225EL




Trailer Weight



Deck Length

25' (20' Flat + 5' Dovetail)

25' (20' Flat + 5' Dovetail)

Deck Width



Deck Height Approx.

35"/ 33" Loaded

35"/ 33" Loaded

Main Beam

12" at 16# I Beam G50+

Beam G50+


Dual 12K 2 Speed Bolt on Dropleg

Dual 12K 2 Speed Bolt on Dropleg


ST235/80R16 E

ST235/80R16 E

Suspension Springs

HD 3" W, 5 Leaf, HD 5,000 lb ea.

HD 3" W 6 Leaf, HD 6,000 lb ea.


3" Stakepockects w Rubrail

3" Stakepockects w Rubrail

Spring Assist Ramps

20.5 x 60" Ladder Style Flat

20.5 x 60" Ladder Style Flat

Decking Material

Treated Pine

Treated Pine

Optional Lengths

25+5, 30+5, 35+5

25+5, 30+5, 35+5

*Maximum GVWR with Weight Distributed Evenly, Not to Exceed Ratings of Components or Tow Vehicle.

**Trailers exceeding 26,000 lbs are subject to Federal Excise Taxes

Never Exceed Tow Vehicle's Towing or Load Specifications. Federal, State, and Local Restrictions may apply to Dimensions and Capacities.

In accordance with our established policy of constant improvement, WTM. Inc. reserves the right to amend these specifications without notice.