Jimmy's Custom Speed Shop

Sunday at midnight (08/10/25) is the final day for shirt & sweat shirt orders. For those who want to pick up orders in person, we'll be at Onaway Speedway

Jimmy's Custom Speed Shop Company Swag 2025 Online ordering for Jimmy's Custom Speed Shop Company Swag 2025 ends on Sun, Aug 10, 2025 (11:59 PM EDT)

When race transmission are on the dyno. Gear ratios are checked by comparing digital read out to what was figured on paper.

Thanks to all my friends at Valley Truck Parts Inc.

Eaton Fuller stock part # S1659 - cryogenic treated. A customer twisted 300m, in a pinch I had them try one of these to get 'em going again. They're still running. Very durable. Will work great for over the road, and C class trucks. There are a few B class guys that do run these.

$175 + shipping
Message or go to website - click contact box

2 units freshened up and ready to go!
Thanks to dyno man Z for his help on both.

Thanks as always to Valley Truck Parts Inc. The entire crew is always fun to go see!

Getting ready to order a batch of input shafts and mainshafts. Trying to get an idea of who may be interested.

Input shafts are available in standard length or 1" longer. With or without clutch brake groove. These are tried, tested and reliable!

Mainshafts are for Eaton Fuller 18 & 13 Speed designs. See photos for comparison. This is a new design, and is intended for A & B class competition.

If you're interested (message is best way), let me know ASAP. Machine shop is busy. Once order is placed, it'll be another month before next batch can be scheduled.

Looking forward to the 2025 race season 🏁