Harley Transmission Complete Gear Sets
Enhance seamless shifting with top-notch Harley transmission overhaul kits. These full gear sets cater to demanding conditions, making them ideal for repairs and performance tuning.
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- Qty in Cart
- Quantity
- Price
- Subtotal
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Jims 6-Speed Overdrive Super Kit 8085
JIMS
$3,090.80Extended highway cruising demands an engine that can breathe easy at sustained speeds, and the JIMS 6-Speed Overdrive Super Kit 8085 delivers exactly that. By dropping your engine RPM nearly 475 at 75 mph, this transmission conversion reduces fatigue on...11030008- SKU:
- 11030008
- Availability:
- Ships Same Business Day
- Weight:
- 27.25 LBS
- FIRST GEAR RATIO:
- 2.94:1
- PRODUCT NAME:
- GEAR SET
- SIXTH GEAR RATIO:
- 0.86:1
- STYLE:
- CLOSE RATIO
- STYLE:
- OVERDRIVE
- TRANSMISSION TYPE:
- 6 SPEED
- RIDING STYLE:
- STREET
- UNITS:
- SET
$3,090.80 -
Jims 6-Speed Overdrive Super Kit for 2001-2006 Harley-Davidson Touring Softail Dyna 8085L
JIMS
$3,198.20If you're running a 5-speed Harley Touring, Softail, or Dyna, you're losing efficiency on the highway and putting unnecessary strain on your drivetrain. The JIMS 6-Speed Overdrive Super Kit converts your transmission into a modern 6-speed system that...11030009- SKU:
- 11030009
- Availability:
- Ships Same Business Day
- Weight:
- 27.25 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- STYLE:
- CLOSE RATIO
- FIRST GEAR RATIO:
- 2.94:1
- SIXTH GEAR RATIO:
- 0.86:1
- STYLE:
- OVERDRIVE
- TRANSMISSION TYPE:
- 6 SPEED
$3,198.20Qty in Cart: 0Quantity:Price:$3,198.20Subtotal: -
Jims Fat 5 5-Speed Overdrive Super Kit 8273 for 1990-2000 Harley-Davidson FLHR Road King
JIMS
$3,921.85If you're running a 1990-2000 FLHR Road King and tired of highway RPMs eating into fuel economy, the JIMS Fat 5 5-Speed Overdrive Super Kit delivers real-world efficiency gains through a proven .886:1 overdrive ratio. This transmission upgrade bolts into...11030010- SKU:
- 11030010
- Availability:
- Ships Same Business Day
- Weight:
- 31.05 LBS
- FIFTH GEAR RATIO:
- 0.886:1
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- THIRD GEAR RATIO:
- 1.31:1
- FIRST GEAR RATIO:
- 2.91:1
- PRODUCT NAME:
- TRANSMISSION KIT
- SECOND GEAR RATIO:
- 1.93:1
- TRANSMISSION TYPE:
- 5 SPEED
- MODEL:
- FAT 5
- TYPE:
- GEAR SET
- UNITS:
- KIT
- FOURTH GEAR RATIO:
- 1.00:1
- STYLE:
- OVERDRIVE
$3,921.85 -
Jims 5-Speed Transmission Rebuild Kit 1984-1990 1020
JIMS
$409.40Transmission wear and internal degradation rob your bike of smooth shifts and reliable power delivery. The JIMS 5-Speed Rebuild Kit 1020 gives you a complete, factory-spec solution to restore your transmission to original performance without the cost and...DS325780- SKU:
- DS325780
- Availability:
- Ships Same Business Day
- Weight:
- 2.44 LBS
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 5 SPEED
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- REBUILD KIT
- UNITS:
- EACH
$409.40 -
Jims Fat 5 5-Speed Overdrive Super Kit 2002-2006 Harley-Davidson FLHR Road King 8274
JIMS
$3,947.55If you're running a stock transmission in your 2002-2006 Road King, you're leaving efficiency and performance on the table. The JIMS Fat 5 5-Speed Overdrive Super Kit transforms your drivetrain with a true overdrive 5th gear that drops RPMs on the...11030011- SKU:
- 11030011
- Availability:
- Ships Same Business Day
- Weight:
- 31.00 LBS
- FIFTH GEAR RATIO:
- 0.886:1
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- STYLE:
- OVERDRIVE
- THIRD GEAR RATIO:
- 1.31:1
- FIRST GEAR RATIO:
- 2.91:1
- PRODUCT NAME:
- TRANSMISSION KIT
- SECOND GEAR RATIO:
- 1.93:1
- TRANSMISSION TYPE:
- 5 SPEED
- FOURTH GEAR RATIO:
- 1.00:1
- MODEL:
- FAT 5
- TYPE:
- GEAR SET
- UNITS:
- KIT
$3,947.55 -
Jims 5-Speed Transmission Rebuild Kit 1980-1983 FLT Tour Glide 1019
JIMS
$356.20Transmission fluid leaks, harsh shifts, and worn synchronizers will kill reliability faster than anything else on your bike. The JIMS 5-Speed Rebuild Kit 1019 gives you a complete solution to restore factory shift quality and eliminate internal slippage...DS325779- SKU:
- DS325779
- Availability:
- Ships Same Business Day
- Weight:
- 2.44 LBS
- MODEL:
- A CUT ABOVE
- STYLE:
- REPLACEMENT
- UNITS:
- KIT
- TRANSMISSION TYPE:
- 5 SPEED
- PRODUCT NAME:
- TRANSMISSION MASTER KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION MASTER KIT
$356.20
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Transmission Complete Gear Sets
- Compatibility: Ensure gear sets match your Harley's model (e.g., Big Twin with Cruise Drive 6-speed, 4-speed or 5-speed transmissions) and year (e.g., 1946-1984 FL/FLH, 1986-2006 Softail). Use the vehicle selector for precise fits, including engine sizes like 96 ci, 103 ci, 110 ci to avoid shifting or power transfer issues.
- Type of Use: For easier parking or reverse functionality, opt for mechanical reverse kits; performance tuning or overdrive benefits from 6/7-speed gear sets for smoother shifting and optimized torque/power in street or touring conditions.
- Components and Upgrades: Select complete sets with gears, shafts, trap doors, bearings, detent components, gaskets, and hardware; upgrade to reverse kits with electronic cut-off switches for added safety and no exhaust modifications.
- Brand and Quality: Choose BAKER DRIVETRAIN for dyno-tested 6/7-speed sets with roller detent drums, ANDREWS for high-nickel alloy steel gears (heat-treated/shot-peened), or MOTOR TRIKE for lightweight aluminum reverse kits. Prioritize USA-made quality for durability and performance.
- Installation and Cost: Sets are direct replacements or case fits with included components; reverse kits install without exhaust changes. Prices range from $1,018.95 for 4-speed sets to $3,695 for 7-speed—factor in made-in-USA quality and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these transmission complete gear sets support? Sets support Big Twins with Cruise Drive, 4/5/6/7-speed transmissions, and models like FL/FLH (1946-1984), Softail (1986-2006)—use the year/make/model filter for exact compatibility.
- How do overdrive gear sets improve performance? They lower RPM at cruising speeds with optimized ratios (e.g., 3.76:1 first, 1.00:1 seventh) for better torque/power on 96/103/110 ci motors.
- What is typically included in a gear set? Sets include gears, mainshaft, countershaft, trap doors, bearings, snap rings, gaskets, hardware; reverse kits add electronic switches and aluminum housings.
- Are reverse kits suitable for all exhausts? Yes, designed with no modifications needed for OEM exhaust, making them ideal for parking assistance on heavy bikes.
- What if a set doesn't fit my Harley? Verify transmission type (4/5/6-speed), engine size, and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related drivetrain parts? Yes—explore clutches, belts, sprockets, or full drivetrain kits in the Harley drivetrain category to complement your gear set upgrade.
