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Home Buy Transmission and Drivetrain Manual Transmissions Bowler Performance Carbon Edition Manual Transmissions 1110099
Bowler Performance GM LS T-56 Magnum 6-Speed Transmission Packages 1511009
Bowler Performance GM LS T-56 Magnum 6-Speed Transmission Packages 1511009 $4,145.00
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Zumbrota Remanufactured Manual Transmissions RMTG56-1
Zumbrota Remanufactured Manual Transmissions RMTG56-1 $3,689.00

Bowler Performance Carbon Edition Manual Transmissions 1110099

$6,999.00

Transmission, Bowler ZR1 Carbon Edition GM T-56 Magnum 6 Speed (No Accessories) 2.29, 1.60, 1.21, 1.00, .82, .68

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Description

Overview

Brand: Bowler Performance Transmissions
Manufacturer’s Part Number: 1110099
Part Type: Manual Transmissions
Product Line: Bowler Performance Carbon Edition Manual Transmissions
Summit Racing Part Number: BTM-1110099
Number of Gears: 6
Input Shaft Diameter: 1.125 in.
Input Spline Quantity: 26
Output Shaft Spline Quantity: 31
Output Shaft Spline Diameter (in.): 1.360 in.
Bellhousing Included: No
Yoke Included: No
Yoke Style: Slip-on
Shifter Included: No
First Gear Ratio: 2.29:1
Second Gear Ratio: 1.60:1
Third Gear Ratio: 1.21:1
Fourth Gear Ratio: 1.00:1
Fifth Gear Ratio: 0.82:1
Sixth Gear Ratio: 0.68:1
Case Material: Aluminum
Remanufactured: No
Quantity: Sold individually.
Notes: Requires a shifter with 0.890 in. center to center 3/8 in. diameter mounting holes.
Special Attention: Transmission only. No bellhousing or accessories included.

Bowler Performance Carbon Edition Manual Transmissions

Bowler Performance Carbon Edition manual transmissions offered are the Tremec T-56 Magnum 6-speed and the TKX 5-speed. These hand-built blueprinted assemblies allow for higher rpm shift points under heavy-torque loads, and are the perfect solution for any serious track car or enthusiast looking for the best possible shift feel and performance.

Magnum T-56 6-speed is rated to handle a tire blistering 700 lb.-ft. of torque, and features a single rail shifter design, 3-piece synchronizer assemblies, three shift lever locations, multiple gearing options, and weighs in at 135 lbs.

TKX 5-speed has 600 lb.-ft. of torque capacity and is capable of engine speeds of 8,000 rpms with shifts at 7,500 rpms. It is available in multiple gear ratio configurations.

Converting your hot rod to a 5-speed or 6-speed is a fantastic way to add overdrive and give yourself the ability to drop the engine rpms and increase your mpgs, which makes owning and driving your prized car much more enjoyable. Choose the desired Bowler Carbon Edition transmission for your vehicle.

Benefits of the Bowler Performance Carbon Editions:

* Reduced operating temperatures
* Reduced torque loss/improved rotating efficiency
* Increased gear and bearing life
* Reduced vibration and noise
* Reduced lubrication requirements
* Improved shift feel
* Eliminated break-in run-in requirements
* Dyno tested

The 5- and 6-speed features:

* REM ISF finished gear set
* REM ISF finished shift rails
* Updated aerospace polymer fork pads
* Updated carbon block rings
* Gray coated finish helps dissipate heat

The 6-speed also offers:

* Updated second gear
* Upgraded 1-2 synchronizer hub
* Nightstick billet shifter
* Upgraded carbon fiber lined blocker rings in all gears, even reverse

Applications

Transmission Manufacturer Code: T-56
Drivetrain: RWD
Bellhousing Bolt Pattern: None
Application Notes: Requires a shifter with 0.890 in. center to center 3/8 in. diameter mounting holes.
Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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