Make Your Own Manual Shift Boot
1. Carefully disassemble your shift boot using a seam ripper paying attention to how the pieces were sewn right sides together. You'll end up with four pieces you can use as a pattern.
2. Use a sharpie pen and trace your pieces on the back side of your fabric/leather/vinyl. If using vinyl, get one that's not stiff, must be flexible. Cut your pieces out 1/8" outside your trace lines on the sides for a seam allowance. The dotted line represents where you cut. (If using the stock boot as a pattern, the narrow pieces are front/back, the wider pieces are the sides.) If you aren't using a stock knob, you may have to adjust the height. Add or take away at the TOP, not the bottom of your pieces.
3. Use extra strong upholstery thread. Machine sew (with a straight stitch) the pieces right sides together using a 1/8" seam exactly the way they were disassembled. If you don't know what this means, I recommend finding someone who does to sew for you, lol.
4. Turn your boot right side out. It should look something like this. At this point you can do a test fit over your retainer ring to check it's right.
The rest are the directions for my particular shift knob. If you have a different one, you'll have to figure out how to adapt these directions to your application.
5. In my case, it's easier to attach the boot to the knob before attaching it to the retainer ring. My shift knob looks like this.
6. Turn the shift boot inside out, and place the knob inside the boot, pushing it as far in as you can. Line up front/back of the knob with front/back of the boot. If narrow end of the boot doesn't fit tightly, you'll need to re-sew the seams at the narrow end so it does (don't need to remove old seam). Trim to 1/8" of your new seam.
7. Use a zip tie or the strong thread wrapped around the retainer ring of the shift knob. The zip tie isn't my first choice, it leaves a bulge that you can see, but it does work.
8. Turn the boot right side out again. The knob is now attached to the boot.
9. Attach the boot to the boot retainer ring by using the holes left from the staples to thread the boot onto the plastic boot retainer. Wear vinyl gloves (like medical/latex gloves) and use a small needle, and it will be easier to pull the needle through the small holes. You could add glue if you don't feel this is enough. This has always been enough for me.
Here's the final product before installing it into your car.
10. Reinstall into the car.