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MasterShift Bump Shifter System - Stock-Appearing Bump Shifter

Bump Shifters for your automatic transmission

By Mark Ehlen, Photography by Muscle Car Restorations Staff
Mastershift Bump Shifter System Stock Looking Shifter
Mastershift Bump Shifter System Stock Looking Shifter
Looks stock, but it isn’t. . . .

This is the age of the paddle shifter. You can get one in the new Camaro, and you’ll see it on racetracks, as the computer-controlled automatic slowly eats away at the notion that without a standard transmission you have no real control. New automatics can match revs, they can shift through six or even eight gears, and if you want to get really exotic, you can electronically “dump the clutch” for a proper Formula 1 start.

Certainly, you are already aware there are large-number shifters, kits, computers, and even whole transmissions dedicated to helping you achieve the perfect gear change every time. One of those companies is MasterShift based in Fallbrook, California. Around since 2002, the company isn’t new to the automotive aftermarket, but we recently came across a really cool use of one of its products that we hadn’t seen before. It’s a goodie that combines the rite of passage of the ratchet-style gate shifter with an electronic paddle for track control.

  • Mastershift Bump Shifter System Stock Camaro Shift Handle
    This is the stock Camaro shift handle. Note the plate with the various gates cut into it for locating Park, Neutral, and the forward gears.
    Mastershift Bump Shifter System Stock Camaro Shift Handle
    This is the stock Camaro shift handle. Note the plate with the various gates cut into it f
  • Mastershift Bump Shifter System Bumpshift Shifter
    The MasterShift Bumpshift is a very compact design and uses contact-less switches for positive actuation every time. The direction the shifter needs to move for up- or downshifting can be changed by just reversing the wires coming out of the shifter. MCR had plenty of room to simply bolt it to the stock shifter plate.
    Mastershift Bump Shifter System Bumpshift Shifter
    The MasterShift Bumpshift is a very compact design and uses contact-less switches for posi
  • Mastershift Bump Shifter System Adjustable Rod
    Connecting the Bumpshift to the stock handle required nothing more than a short adjustable rod. The center resting position of the Bumpshift must exactly match the stock handle in its new locked position.
    Mastershift Bump Shifter System Adjustable Rod
    Connecting the Bumpshift to the stock handle required nothing more than a short adjustable
Mastershift Bump Shifter System MCR Plate
MCR fabricated a new plate with a notch in the Neutral position. As shifting only requires a small bump to the lever, this provides a way to prevent accidental shifts while you are reaching for your bag of fries.
Mastershift Bump Shifter System MCR Plate
MCR fabricated a new plate with a notch in the Neutral position. As shifting only requires

One of the 99 Genius Ideas built into the car by Muscle Car Restorations in Chippewa Falls, Wisconsin, was concealing a MasterShift bump shifter inside the stock shifter console and controlling it with the stock Basket Handle shifter (See “The Coolest Camaro in the World,” Apr. ’11). Because MCR is planning some road course action for the car, MasterShift paddle shifters were added so the driver never has to take his hands off of the wheel.

The MasterShift system includes all the normal auto transmission safety features, such as overdrive protection (overdrive is disabled on braking or downshifting); neutral safety to prevent the car from starting in gear; brake safety (the brake must be on to shift into Reverse or Park); and, speed safety (Reverse or Park can’t be engaged above 1 mph).

The Bumpshift is a sequential-style, surface-mountable shifter that activates a shifter module (mounted in the trunk in this case) that connects to your transmission via a custom-length shift cable. Bumping the lever in either direction will cycle your transmission through the standard P-R-N-4-3-2-1 positions.

Mastershift Bump Shifter System Stock Shift Handle
The stock shift handle goes back to its stock location within the console. The Bumpshift is concealed under the shift handle cover.
Mastershift Bump Shifter System Stock Shift Handle
The stock shift handle goes back to its stock location within the console. The Bumpshift i

The 4L60E automatic, built by Auto Trans Design in Germantown, Wisconsin, could, with the flick of an A-B switch hidden under the dash, operate normally in the standard Drive mode or be manually controlled. In A-mode, MasterShift does not alter the characteristics of your trans; it simply shifts the trans into the gear position you choose. In the Fourth gear position, it will operate the same as normal Drive mode. And positions 1, 2, or 3 will limit the trans just as any other stock shifter would. In B-mode, the transmission only engages the gear you choose. Bumping the lever forward or backward will upshift or downshift the trans manually.

So while a stick is still being moved to shift gears, it can now be a very positive, precise, and repeatable operation. And it only requires a small bump instead of a long vertical swing.

Follow along, as we show how MCR fitted this technology to its ’69 Camaro.

Parts List

Description PN Price
Auto shifter MS-0005 $1,950.00
Bump shifter MS-BUMPSHIFT 499.00
Gear indicator MS-GDA1PL 250.00
Shifter cable 99.5 inches 85.00

  • Mastershift Bump Shifter System Shifter Unit
    The shifter unit, commonly mounted in the trunk, connects to the Camaro’s 4L60E via a standard-type shift cable (small hole, upper left). The connector in the lower right provides the electrical inputs for the various safety features as well as convenience features, such as skip to Park or skip to Drive. PC software is included for configuring the MasterShift unit’s various features.
    Mastershift Bump Shifter System Shifter Unit
    The shifter unit, commonly mounted in the trunk, connects to the Camaro’s 4L60E via a stan
  • Mastershift Bump Shifter System Control Cables Shifter
    One end of the 99.5-inch Control Cables shifter connects to an electronically controlled lever inside the shifter unit mounted in the Camaro’s trunk just behind the back seat.
    Mastershift Bump Shifter System Control Cables Shifter
    One end of the 99.5-inch Control Cables shifter connects to an electronically controlled l
  • Mastershift Bump Shifter System Transmission Tunnel
    The cable passes into the transmission tunnel just behind the shifter location.
  • Mastershift Bump Shifter System Shift Cable Mount
    A small plate was welded to the shift cable mount so it could be attached to the transmission with two pan bolts.
    Mastershift Bump Shifter System Shift Cable Mount
    A small plate was welded to the shift cable mount so it could be attached to the transmiss
  • Mastershift Bump Shifter System Grant Wheel
    Partly because they look super trick and partly because MCR intends for the car to see some road course time, MasterShift paddle shifters were installed behind the Grant wheel so the driver has the option of using them or the floor-mounted bump shifter.
    Mastershift Bump Shifter System Grant Wheel
    Partly because they look super trick and partly because MCR intends for the car to see som
  • Mastershift Bump Shifter System Mastershift Gear Display
    Even though the stock shift handle is being used to change gears, it can no longer serve as a gear indictor, so a MasterShift gear display was used. The 2-inch-round display is normally surface-mounted, but MCR cleverly cut an opening in the dash near the wiper switch and rear-mounted the display so only the numbers are seen. Normal Drive mode is indicated by the highest gear number available. End
    Mastershift Bump Shifter System Mastershift Gear Display
    Even though the stock shift handle is being used to change gears, it can no longer serve a
SOURCES
Master Shift
PO Box 1537
Fallbrock
CA  92088
888-658-2727
www.mastershift.com
Control Cables Inc
9816 Alburtis Ave.
Santa Fe Springs
CA  90670
562-249-0455
ControlCables.com
Muscle Car Restorations
11371 20th Ave.
Chippewa Falls
WI  54729
715-834-2223
www.musclecarrestorations.com
Auto Trans Design
Germantown
WI
262-251-7777
www.autotransdesign.com
By Mark Ehlen
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