Dynotech Engineering Services was started with Balance Engineering by General Motors in 1923. Let us put our 80 plus years of experience at high speed balancing to work for you on your driveshaft application.
We are the leading driveshaft manufacturer for teams in the following sanctioned racing bodies: NASCAR Nextel Cup & BUSCH Series, Craftsman Truck Series, NHRA, IHRA, SCCA, NSCA, SCORE, CORE, WSORR, OSS, and APBA.
Whether you’re driving a high-performance racing vehicle or your favorite muscle car, Dynotech Engineering Services knows the importance of a great driveshaft. Our custom-made driveshafts are hand assembled, computer welded and high-speed balanced to peak industry standards, ensuring a quality, long-lasting product. Getting you back on the road as quickly as possible, we build and ship most parts within 72 hours or less.
With decades of experience building custom driveshafts, we have the knowledge to fit most vehicles. From muscle cars to four-wheel driveshafts, we have you covered with our attention to detail and quality craftsmanship. Our custom driveshafts are guaranteed vibration-free, and we stand by our work 100 percent.
Dynotech Engineering is the manufacturer of choice throughout racing, including the NASCAR Sprint Cup, Nationwide, and Steve L. Raymond Camping World Truck Series. We have racing driveshafts available in steel, aluminum, composite, and hybrid designs. More than 70 percent of NASCAR drivers use our 4.0” steel driveshafts!
We offer free ground shipping for all driveshafts in the contiguous United States. Call, email, or visit us at our Troy, Michigan, location, and get your vehicle moving today!
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The five most critical elements of your driveshaft.
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| 1. How tightly do they hold universal joint clearances?Dynotech holds u-joint clearance to less than 0.002″.2. How tightly do they hold shaft runout?Dynotech holds shaft runout to less than 0.010″.3. How tightly do they hold their balance specifications?
Dynotech balances all driveshafts to less than 0.20 oz-in
4. When you provide your builder with a shaft length, how closely will they match it? Dynotech builds all shafts to within 1/16″ (.0625″), guaranteed to fit!
5. What speeds do they balance their shafts at? Dynotech has the capability to balance most shafts at up to 8,000 RPM |
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Hi folks,
I have a pure stock ’69 Dodge GTS using the factory A-833 manual 4 speed transmission. The current/original driveshaft uses a small 7260 joint at the front slip yolk end and a conversion 7260/7290 joint at the rear flange.
I have some drive-line vibration most noticeable at highway speeds around 2700 – 3000 RPM range. I have not measured with a dial indicator, but the shaft has some visible run-out idling in gear with the rear wheels off the ground and car weight sprung.
Looking for a complete shaft with 7290 type universal joints. I believe it is 52 inches from center to center of universal caps on tube. That said, I will measure with your preferred method, and confirm prior to ordering.
Inquiring for total cost and availability shipped to zip 32164.
Regards,
Gerald Campbell
Hello Gerald, we dont sell driveshafts here at ridetech, I would send your questions to Dynotech for application questions, we have a couple of half shafts we stock for corvettes, that’s it.
Hi Folks,
Gonna try this again as I did not get any response to the previous message I sent 3/28/2023.
I have a pure stock ’69 Dodge GTS using the factory A-833 manual 4 speed transmission. The current/original driveshaft uses a small 7260 joint at the front slip yolk end and a conversion 7260/7290 joint at the rear flange.
I have some drive-line vibration most noticeable at highway speeds around 2700 – 3000 RPM range. I have not measured with a dial indicator, but the shaft has some visible run-out idling in gear with the rear wheels off the ground and car weight sprung.
Looking for a complete shaft with 7290 type universal joints. It should measure 52 and 3/16 inches from center to center of universal caps on tube. The front slip yolk has 29/30 splines.
Inquiring for total cost and availability shipped to zip 32164. Please respond with any questions or recommendations to – [email protected]
Regards,
Gerald Campbell
hello Gerald, we dont make the driveshats, contact dynotech for custom application questions. Thanks