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About Us

We do business the old-fashioned way.

At Heavy Duty Transaxle we don't play around. Our job is to solve problems, and that's what we do best. After one phone call you'll know what so many of our customers already do: We may not be the cheapest guys around, but when it comes to off-highway solutions there is no equal.

Steve Manion, President

Steve Manion, President

Steve is the founder and president of Heavy Duty Transaxle. With over 25 years of field sales experience, Steve has the real-world product knowledge necessary to help you with your off-highway and heavy duty drivetrain problems. Steve works with both small and large companies in the mining, oil field, construction and logging industries.

When he's not getting heavy duty equipment back on the road Steve enjoys hunting, fishing and spending time with his grandchildren. Contact Steve


Gary Rembold, General Manager

Gary Rembold, General Manager

As the General Manager and Shop Foreman, it's Gary's job to ensure that the products we sell meet the exacting standards we're known for. Gary brings more than 30 years of expertise in the mechanical rebuild field and more than 15 years of off-highway drivetrain experience to work every day. Gary's secret talent (and why our customers love him)? He can solve most complex drivetrain problems over the telephone. Give him a call and find out for yourself. Contact Gary


Jake Manion, Sales

Jake Manion, Sales

Learning the ropes is never easy, but fortunately for HD Transaxle Jake is a quick study. Born and raised in the business, Jake is a competent parts man that is willing to go the distance for the customer.

Contact Jake




Technical Team

Heavy Duty Transaxle Technicians

With over 70 years of combined experience, our mechanics know how to get the toughest jobs done. A lot of guys can turn a wrench, but it takes more than that to diagnose and solve the big problems. We recruit and hire only the brightest and most qualified mechanics and parts experts. You won't find a lot of fooling around at our shop - we're here to do a job.



Location and Contact information

Heavy Duty Transaxle (formerly known as TBS Truck Equipment & Parts) is located 40 miles east of Seattle, Washington. Our business hours are Monday thru Friday, 9:00 AM to 5:00 PM Pacific Standard Time.

Telephone (888) 383-3301 toll-free (US & Canada only)
(360) 793-3661
(360) 793-3881 fax
Mailing address PO BOX E
Startup, WA 98293
United States of America
Shipping address 35409 State Route 2
Startup, WA 98293
United States of America