Tremec TUET18132 Magnum XL T56 6-Speed Manual Transmission GM

#91029015

Tremec TUET18132 Magnum XL T56 6-Speed Manual Transmission GM

700 lb-ft torque capacity for high-performance GM builds
Extended Magnum XL tail housing for correct late-model shifter positioning
Direct-mount shifter design for improved shift feel and precision

Gear Ratio Profile:

Wide Ratio / 2.97 2.10 1.46

$3,695.00

/each

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Product Summary

T56, 6-Speed Transmission Speeds, 700 ft./lbs. Torque

700 lb-ft torque capacity for high-performance GM builds
Extended Magnum XL tail housing for correct late-model shifter positioning
Direct-mount shifter design for improved shift feel and precision
High RPM capability with smooth shifting up to 7,800+ RPM
Ideal for street, performance, and competition applications

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Key Specs

MFG. Part #	TUET18132
Brand	TREMEC
Transmission Speeds	6-Speed
Input Shaft Spline Count	26
Input Shaft Diameter	1.125"

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TREMEC TUET18132 Details

The Tremec TUET18132 Magnum XL T56 6-Speed Manual Transmission is a high-performance aftermarket evolution of the legendary TR-6060, originally used as factory equipment in many modern Detroit muscle and sports cars. Designed for late-model GM applications, the Magnum XL features a unique extended-length tail housing that moves the shifter position over 8 inches rearward to properly align with factory semi-remote shifter configurations.

In today’s NVH-sensitive (noise, vibration, and harshness) vehicles, factory semi-remote shifters are commonly used to isolate unwanted harmonics from the cabin. While effective for comfort, these systems often compromise shift precision. The Magnum XL eliminates this drawback by incorporating a rigid direct-mount shifter and a proprietary shift isolator, delivering an exceptional balance of refined dampening and crisp, accurate gear engagement.

Engineered for both performance enthusiasts and competitive drivers, the Magnum XL is capable of handling up to 700 lb-ft of torque while providing smooth, reliable shifts at 7,800+ RPM. Its robust yet adaptable design also allows for use in custom builds and motorsport applications.

700 lb-ft torque capacity for high-performance GM builds
Extended Magnum XL tail housing for correct late-model shifter positioning
Direct-mount shifter design for improved shift feel and precision
High RPM capability with smooth shifting up to 7,800+ RPM
Ideal for street, performance, and competition applications

Gear Ratios: 1st - 2.97
2nd - 2.10
3rd - 1.46
4th - 1.00
5th - 0.80
6th - 0.63
Reverse - 2.90

Charts

Tremec Transmission Warranty

Warranty Information

Speedway Motors cannot facilitate the return of defective Tremec products as they have requested to handle these directly with the consumer. For defective product support and Return Authorization, please contact Tremec at +1 (800) 401-9866 (USA) or by ema

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

TREMEC TUET18132 Specifications

KEY SPECS
MFG. Part #	TUET18132
Brand	TREMEC
Transmission Speeds	6-Speed
Input Shaft Spline Count	26
Input Shaft Diameter	1.125"

GENERAL
Torque	700 ft./lbs.
Output Shaft Spline Diameter	1.375"
Output Shaft Spline Count	31
Case Material	Aluminum
First Gear Ratio	2.97:1
Gear Ratio (2nd)	2.10:1
Gear Ratio (3rd)	1.46:1
Gear Ratio (4th)	1.00:1
Gear Ratio (5th)	0.80:1
Gear Ratio (6th)	0.63:1
Bellhousing Included	No
Yoke Included	No
Shifter Included	No
Gear Ratio (Reverse)	2.90:1
Sold in Quantity	Each
Yoke Style	Slip On
Shifter Style	Linkage operated

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