1955-1957 Chevrolet 6-Speed Builder's Kit - T56 | Keisler Builder's Series™ Kits | 1955-1957 | Bel Air | GM | Keisler Engineering, Inc

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1955-1957 Chevrolet 6-Speed Builder's Kit - T56

Ordering

To ensure order accuracy, please call us to order or use our Request A Quote form to get a price quote within 24 hours.

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1-865-609-8187

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Kit Components

A truly complete conversion combining the unmodified Tremec T-56 transmission with all of the correct matched parts that have been carefully selected and tested by Keisler for guaranteed quality and performance.

Drivetrain component selection and installation instructions and support is critical to get the job done right. Rest assured, buying from Keisler - the leader in overdrive transmission systems - is the first step in the best driving improvement you will make to your 55-57 Chevy.

1. TRANSMISSION - NEW TREMEC T-56 (475 HP/475LB-FT), with the stock Tremec shift mechanism in it's original rearward location.

Shifter is located 28.4 inches from the rear face of the engine block
Gear Ratios: 2.97 1st, 2.07 2nd, 1.43 3rd, 1.00 4th, .80 5th; 0.62 6th, 2.90 reverse.
Low RPM Cruising - 38% drop in engine RPM in 5th gear (check out our Speed Analyzer).
Nation-Wide Parts & Service - Parts in-stock; service in-house.

2. PILOT BEARING - Needle Roller Bearing for long life and high capacity.

3. ISOLATOR - Heavy-duty rubber isolator. Polyurethane upgrade available.

4. WIRING HARNESSES - Easy coupling to factory wiring for reverse lights and reverse lock out.

5. DRIVESHAFT - Lightweight high strength steel, automatic welded and computer dynamic balanced with premium solid sealed U-joints, painted satin black, certified and serialized. Built in-house on Hines driveshaft manufacturing cell for the ultimate in quality and craftsmanship!

6. SLIP YOKE - Heavy duty Spicer slip yoke.

7. INSTALLATION HARDWARE KIT - High strength Grade 5 and 8 fasteners, properly sorted, bagged and labeled for easy reference.

8. INSTALLATION MANUAL - Highly illustrated step-by-step instruction manual.

9. 3 YEAR WARRANTY - 2 years to activate (in case you are restoring a car)! Extended warranty available at extra cost. Best Customer Support in the Industry.

100% Customer Satisfaction Guaranteed

The best Customer and Tech Support in the industry
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1955-1957 Chevrolet 6-Speed Builder's Kit - T56

Overview-Ordering

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Keisler's Builder's Series Kit is a great lower-cost alternative to the PerfectFit Kit for the car owner who will be installing a custom interior with bucket seats. The Builder's Series Kit includes all the same high quality components as the PerfectFit Kit, but with a non-customized transmission. Requires modification of the factory transmission tunnel and will not work with the original bench seat.

Enjoy low-rpm cruising, great fuel economy, and less engine wear with the Tremec T-56 6-speed double overdrive manual transmission!

Speed Analyzer

GM Muncie / T10 vs. T56

1. Pick your T56:	T56 6-speed (550 Torque)	(Reduction in RPM: 20%, 38%)
	T56 6-speed (700 Torque)	(Reduction in RPM: 20%, 38%)
	T56 6-speed (700 Torque)	(Reduction in RPM: 26%, 50%)

2. Pick your tire size: / R-

3. Pick your cruising RPMs:

Results: The Best of Both Worlds!

Low Gear Acceleration AND Low RPM Cruising!

1st Gear Comparison		Final Gear Comparison
Stock Differential Ratio	TREMEC Accelerates like:	Stock Final Gear	TREMEC 5th Gear	TREMEC 6th Gear
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
Rolling diameter for selected tire: inches
TREMEC Gear Set:			Torque:
Muncie/T10 Gear Set: 1st=2.52:1; 4th=1:1