Starting a motion raceworks shifter cable install doesn't have to be a headache, but it's definitely one of those jobs where if you rush, you'll be chasing your tail for hours. Most of us have been there—you get everything bolted up, hop in the seat, and realize you can't quite hit Park or that it's hanging up between second and third. It's frustrating. But the truth is, Motion Raceworks makes some of the beefiest, most reliable cables on the market, so once you get it dialed in, you probably won't have to touch it again for a long time.
Why this cable is a different beast
If you've spent any time looking at cheap, generic shifter cables, you'll notice right away that the Motion Raceworks version is on another level. It's thick, it's stiff, and it's built to handle the abuse of a race car. The reason people go this route is simple: accuracy. When you're clicking through gears at high RPM, you don't want a cable that stretches or bows.
However, because these cables are so heavy-duty, they aren't as "forgiving" during the install. You can't just kink them into a tight corner and expect them to work smoothly. They require a bit of planning when it comes to the path they take from the cockpit to the transmission.
Getting your workspace ready
Before you even crawl under the car, clear out your interior. If you're doing a motion raceworks shifter cable install in a car that still has a full carpet and center console, take the extra ten minutes to remove what's in your way. There's nothing worse than trying to thread a high-quality cable through a tiny hole in the floor while fighting a piece of jagged plastic or carpet padding.
You'll also want the car up on jack stands—high enough that you can move freely. Safety first, obviously. Make sure you have your basic wrenches, some pliers, and maybe some red Loctite for the final assembly.
Routing the cable for success
This is the part that makes or breaks the whole project. When you're routing the cable, you want to avoid two things: extreme heat and tight bends.
Even though these cables are tough, headers will eventually win a fight against any casing. Try to keep the cable as far away from the exhaust as possible. If you have to get close, look into some heat shielding or a fire-resistant sleeve.
When it comes to the bends, think in "large circles." You want the cable to have a nice, natural flow. If you force it into a 90-degree turn right out of the shifter, you're going to feel that resistance in the handle. It'll feel "notchy" or heavy. A smooth arc will give you that "click-click" precision that makes a good shifter feel so satisfying.
Connecting to the shifter
Once the cable is routed through the floor, it's time to hook it up to the shifter base. Most people find it easier to start at the shifter and work toward the transmission.
Slide the cable through the shifter's mounting bracket and secure it. You'll usually have some jam nuts here. Don't crank them down with all your might just yet. Leave yourself a little wiggle room for adjustments. Pop the eyelet or the quick-disconnect end onto the shifter's pivot pin.
Give it a few dry shifts. Does the cable move freely? Does the handle feel like it's binding? If it feels weird now, it's only going to get worse once it's hooked to the heavy lever on the transmission. Fix any binding issues in the routing before you move to the underside of the car.
The transmission side of things
Now, head underneath. You'll need the specific bracket for your transmission—whether it's a TH400, Powerglide, 4L80E, or whatever you're running. The bracket needs to be clocked correctly.
One thing that trips people up during a motion raceworks shifter cable install is the shifter lever on the transmission itself. If that lever is facing the wrong way or is the wrong length for the shifter's throw, you'll never get the gears to sync up. Motion Raceworks usually provides or recommends a specific lever that matches the cable's travel. Use it. It saves a lot of swearing later on.
Setting the neutral point
Here is a pro tip that'll save you a ton of time: don't try to sync the shifter starting in Park. It's much easier to find "Neutral" on both the shifter and the transmission and start there.
- Put the shifter handle in the Neutral detent.
- Go under the car and manually click the transmission lever into Neutral. (If you're not sure where Neutral is, click it all the way to one side for Park, then back two clicks for a three-speed, or three for a four-speed).
- Adjust the threaded end of the cable until it slides perfectly onto the transmission lever pin without you having to pull or push the cable.
If you have to "force" the cable onto the pin even a little bit, your alignment is off. It should drop right on.
Testing the range of motion
Once you think you've got it, it's time for the "full sweep" test. This is where a buddy comes in handy. Have them sit in the car and slowly go through every gear while you watch the lever on the transmission.
Check for two things: - Full engagement: When the shifter is in Park, is the transmission actually in Park? When it's in Low 1, is the lever bottomed out in the right spot? - Detent alignment: Does the "click" in the shifter happen at the exact same time as the "click" in the transmission?
If the shifter hits the stop before the transmission does, you need to adjust the cable length at the threaded ends. Usually, a turn or two is all it takes. This is a game of millimeters, so be patient.
Final tightening and a bit of Loctite
Once you're 100% sure that every gear is hitting where it should, go back and tighten everything down. Those jam nuts on the cable brackets can vibrate loose over time, especially in a car with a lot of vibration or a solid-mounted drivetrain.
A tiny drop of blue or red Loctite on the nuts isn't a bad idea. Just don't overdo it in case you ever need to replace the cable down the road. Also, make sure any cotter pins or clips are actually bent and secured. It sounds obvious, but you'd be surprised how many people leave a clip "finger tight" and lose it on the first pass.
Dealing with common issues
If you finish your motion raceworks shifter cable install and the shifter feels incredibly stiff, check your zip ties. Sometimes we get a little over-zealous with the zip ties and cinch the cable casing down too hard against the frame or a roll cage bar. This can pinch the inner cable and cause friction. The cable should be held in place, but it doesn't need to be strangled.
Another thing to look out for is "cable grow." As things get hot and settle in, you might find you need to tweak the adjustment after the first weekend of driving. It's totally normal. Just hop under there, pop the end off, give it a half-turn, and you're back in business.
Wrapping it up
Doing a motion raceworks shifter cable install is really just about patience and pathing. If you give the cable a clear, smooth path and take the time to sync the Neutral position properly, it's a very rewarding upgrade. There's a world of difference between a mushy, vague shifter and one that uses a high-quality Motion Raceworks cable. It gives you the confidence to beat on the car knowing that when you pull that lever, it's going exactly where it's supposed to.
Now, put the interior back together, double-check your fluid levels if you had to pull the pan for the bracket, and go see what it feels like on the road. You'll notice the difference immediately.