Kit Components

A truly complete conversion, combining the Keisler PerfectFit^TM transmission system 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 instruction and support is critical to get the job done right. Rest assured, buying from Keisler - the leader in manual transmission systems - is the first step in the best driving improvement you will make to your Mopar B-Body.

1.  TRANSMISSION - NEW TREMEC TKO-500 (500 HP/500 FT-LB), customized by Keisler to fit your 1971 - 1974 Mopar B-Body. A number of custom features are included (with no hidden charges) that you won't find anywhere else, including:

• Shifter location custom designed for your 1971-1974 Mopar B-Body.
• Works with factory 4-speed console, places shifter EXACTLY in the factory 4-speed location.  Bucket seats required.
• Short-throw shifter mechanism designed to provide better-than-stock shifting.
• Custom-machined transmission case and tailhousing allows the transmission to fit your car with NO MODIFICATION to the floor tunnel in most cars. Some cars require minor alteration of the tunnel; a cutting template and replacement sheetmetal are provided in case they are needed.
• No cutting of the torsion bar crossmember.
• Gear Ratios: 3.27 1st, 1.98 2nd, 1.34 3rd, 1.00 4th, .68 5th; 3.00 reverse.
• Low RPM Cruising - 32% drop in engine RPM in 5th gear (check out our Speed Analyzer).
• Precision Assembled, TRIPLE Quality Checked - assembled at Keisler by our trained technicians; 100% inspected for function, leak and visual appearance (check us out).
• Nation-Wide Parts & Service - Parts in-stock; service in-house.

2.  CROSSMEMBER -  No-flex/No-problem rigid welded box construction design with integrated isolator perch. OE quality look with zinc-plated finish.

3.  PILOT BEARING - Needle Roller Bearing for long life and high capacity, works with original manual or automatic crankshaft.

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

5.  BACK-UP LIGHT WIRING HARNESS - Easy coupling to factory wiring.

6.  NEUTRAL SAFETY START SWITCH - Can be wired in to starter circuit if desired.

7.  SPEEDOMETER CABLE & DRIVEN GEAR - Mechanical speedometer cable and correct driven gear PLUS integrated 2-wire electronic output included. Optional electronic wiring harness also available (for use with electronic speedometers or EFI).

8.  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!

9.  SLIP YOKE - Heavy duty Spicer slip yoke.

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

11.  BELLHOUSING MACHINING - Custom machining of customer-supplied bellhousing core. We re-machine your Mopar core in-house with computer-controlled CNC systems to ensure high accuracy of centering, flatness, parallelism and engine mounting. (Dowel pins bored and brushed; engine mounting holes spot faced.) New Keisler Big Block bellhousings, Safety bellhousings, and reconditioned Small Block bellhousings are also available.

12.  TEMPLATE AND SHEETMETAL - Not required for most installations,  a template for marking the transmission tunnel and sheetmetal pre-cut to the correct size and shape for a no-hassle installation.

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

14.  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
• Lifetime Tech Support from our premier experienced staff

Overview-Ordering

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The Keisler PerfectFit™ System is the easiest and most complete way to put a high strength, modern 5-speed manual overdrive transmission in your 1971-1974 Mopar B-Body. Keisler's PerfectShift™ transmission case and shifter provide absolutely the best quality and fit, which is important for ease and cost of installation.  Shift quality is positive, with short throws and permanently lubricated shift linkage.  

Unsurpassed quality of design, components and build are included with every Keisler PerfectFit™ System.  Enjoy low RPM cruising and fun shifting, while getting the benefits of reduced engine wear and tear.  Join thousands of customers that say "The Keisler PerfectFit™ Transmission System is the Best Upgrade for your 1971-1974 Mopar B-Body!"

NOTE:  REQUIRES BUCKET SEATS, WILL NOT FIT WITH FRONT BENCH SEAT.

Speed Analyzer

Testimonials

Recent Testimonials...

Gary and Pam Beineke - '72 GTX

Gary and Pam Beineke, regular Keisler customers, have their '72 GTX featured in Mopar Action's October, 2009 issue!  Check out their other testimonials here and here!