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McLeod 512957

Muscle Car 5 Transmission For GM Cars

McLeod 512957

673-512957

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McLeod 512957 Muscle Car 5 Transmission For GM Cars $2,795.00
Muscle Car 5 Transmission
  • For GM Cars
  • 5 Speed
  • 2.95 1st Gear
  • 0.63 5th Gear
  • 32-Spline Output Shaft

  • McLeod 512957 Details

    Muscle Car 5 Transmission

    Note: When used in GM vehicles this transmission will require the use of an speedometer adapter part # 673-512958

    Specifications:

    Manufacturer's Part Number:
    512957

    The revolutionary Muscle Car 5 Transmission with a 2.95 1st gear and .63 5th gear. Its innovative design gives muscle car owners the ability to use an overdrive transmission without having to make expensive or annoying modifications. The McLeod Muscle Car 5 is designed with an exclusive case design that allows for fitment into tight tunnels. Gone are the days of cutting your floorboards to be able to get the benefits of improved fuel economy and lower RPMs that an overdrive transmission provides. With 8620 forged steel gears and a 32-spline output shaft, the Muscle Car 5 can handle up to 500 ft lbs of torque. We made sure the gears were fully synchronized for smooth shifting and quiet operation. The internal rail shifter aides in quick and smooth shifts. The front cover is designed so it will bolt up to your factory bellhousing.

    512957 - McLeod Muscle Car 5 Speed Transmission is rated 3.0 out of 5 by 2.
    Rated 4 out of 5 by from Glad I went to a 5-speed in my 65 GTO The five speed just made this GTO able to run the interstate but this is not a bolt in and go. Modifications to fit include, cutting tunnel and rising about an inch. Shifter location changed to center and back about 3", this was no problem for me because I have no center console. Drive shaft needs to be shortened and a turbo 400 yoke. Stock trans brace worked but had to shorten rubber trans mount a little for yoke clearance Speedometer needs a reverse rotation adapter which I'm still trying to source out (The one Jeg's sells does NOT fit). Shifting was a little rough at first but has smoothed out and shifts nice now, glad I did it.
    Date published: 2015-07-12
    Rated 2 out of 5 by from McLeod 512957 CAR: 1973 Nova SS Hatchback factory 4 speed. I am still working on the install. Thus far here have been the issues: 1. Had to have throw out bearing sleeve on the transmission milled down to fit stock throw out beating. Action not expected 2. Change clutch disc to 26 spline. Expected. 3. Purchase 400 yoke to replace stock yoke. Expected 4. Transmission mount. Had to move the rear tranny cross member back. Tranny was hitting it. Had to make a tranny mount. The stock mount would not fit because top of tranny hit tunnel. Once a mount was created and installed and tunnel cleared, tranny was about 1/2 inch too low. HEI distributor cap touches firewall. Still sorting that out. 5. Had to extend the hole in the floor towards back of the car by 4 inches (and 4 inches wide). The top load part of the tranny was hitting the tunnel. Some changes I did not expect to make but maybe they do not consider my '73 to be a classic. So far I am disappointed with how it fits my car. I am now committed so I hope to complete the process in a couple of days. They need to tell us specifically what GM card it is designed for. Not sure what issues I will have during the test drive. 6. There was also a suggested speedometer adapter that I ordered. It was totally wrong and did not even fit the transmission.
    Date published: 2015-12-28
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