Steer axle stabilizers. DVI Motion Controls. DVI - Donvel Inc. Ride Control Systems.
Steer axle stabilizers. DVI Motion Controls.
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  Frequently Asked Questions  
   
  Q.
What is the Donvel Ride Control System?
 
  A.
It is a unique air control system for Class 6, 7, 8 trucks for which Donvel has received one patent and has another patent pending. The Donvel Ride Control System consists of two products, available separately or as a package. First is the Steer Axle Stabilizer kit that reduces excess bounce and rock. Second is the DVI Motion Controls for the existing air springs on your cab/sleeper, seat, drive axles and trailer axles that also reduce excess bounce and rock.
 
   
 
  Q.
How does the Donvel Ride Control System reduce bounce and sway?
 
  A.
Our unique air control system with the DVI Motion Controls constantly controls how fast the Stabilizers are reacting with any pressure settings the driver may give them. Built-in control gives quickness of response to each bump, with a holding and releasing effect. This greatly reduces excess spring action, quieting and smoothing the ride. The Steer Axle Stabilizers greatly reduce the work shock absorbers have to do and extend their life. They also lessen damage to the cab and sensitive electronics in the dash, not to mention the most important component, the driver. The high condo sleepers have a special problem with rock and roll that causes stress on the steer axle, causing the truck to wander. By installing DVI Motion Controls with the existing air springs on the sleeper you can virtually eliminate excessive sleeper movement, therefore working hand in hand with the Stabilizers. The truck goes down the road straighter with much better control.
 
   
 
  Q.
How does the Donvel Ride Control System differ from other air ride products?
 
  A.
Our patented DVI Motion Controls provide millisecond quick control of the Stabilizers. This controlling force is constantly reducing over compression and bounce back of the truck‘s steel springs. It also greatly reduces excess chassis movement. In addition, the constant holding and releasing action of the Stabilizers give increased stability to the truck’s steer axle, making cornering safer, extending the life of shock absorbers and steer tires.
 
   
 
  Q.
Does the Donvel Ride Control System require a change to my truck?
 
  A.
No. Your truck is not altered. You may have to remove the shock absorbers to install the Stabilizers, but then you re-install the shocks.
 
   
 
  Q.
Are the Steer Axle Stabilizer kits universal?
 
  A.
No. Each kit is custom-built for your truck‘s make and model only. If measurements are needed, Donvel provides a measurement form (six questions) that takes about five minutes to complete. This form can be faxed to Donvel or the measurements called in.
 
   
 
  Q.
Can I install the Donvel Ride Control System myself?
 
  A.
Yes. Installation instructions for the Steer Axle Stabilizers and DVI Motion Controls are included. The Steer Axle Stabilizer kit is complete, with every part that you need to install it yourself. The Stabilizers arrive assembled, ready to set over the leaf springs behind the axle block. You do have to drill two holes in the frame in order to bolt the Stabilizers into place (unless you have a Kenworth W900 series). The Stabilizers are anchored to the axle block with bolt and bars. A gauge and valve are included for the dash so you can adjust the air pressure at any time. The DVI Motion Controls for the existing air springs on the cab/sleeper, seat, drive axles and trailer axles are installed in the air line first thing out of the air spring.
 
   
 
  Q.
Where can I buy replacement air springs?
 
  A.

Donvel keeps replacement air springs in stock. The air springs come with the brass installed and are leak and pressure tested.

 
   
 
  Q.
What is your warranty and return policy?
 
  A.
There is a one year warranty on the air springs. You may return our products within 30 days of purchase date for a refund.
 
   
 
  Q.
What if I change trucks? Are the Steer Axle Stabilizers transferable?
 
  A.
Yes, the Stabilizers can be transferred from one truck to another, provided it is the same truck make and model. The Stabilizers are not transferable between different truck makes and models. This is because each Stabilizer kit is custom-built for the truck they go on to ensure a good fit and appearance.
 
   
 
  Q.
Does Donvel Inc. do installations?
 
  A.
Yes. Donvel does installations as a customer service. We request at least 24 hours notice of your arrival. The average installation time is 3 to 4 hours.
 
   
 
  Q.
Where is Donvel Inc. located and what are your hours?
 
  A.
Donvel is located at 10752 U.S. Highway 271, Gladewater, Texas, 75647. From Interstate 20, take Exit 571A, go 13 miles north on U.S. Highway 271 to Gladewater, turn right on truck bypass Loop 485, turn right on U.S. Highway 271, go north 2.5 miles and Donvel is on the west side of U.S. Highway 271. From Interstate 30, take Exit 160, go 40 miles south on U.S. Highway 271, Donvel is 2.3 miles further south of intersection of U.S. Highway 271 and FM 726, on west side of U.S. Highway 271. We are open Monday through Friday, 8:00 a.m. to 5:00 p.m. Central Standard Time. There is room to park your truck and trailer.
 
   
 
  Q.
Do you build Steer Axle Stabilizers for pick ups?
 
  A.
No. The Steer Axle Stabilizers are designed for the Class 6, 7, 8 trucks. You may wish to contact the Air Lift Company at (800) 248-0892. They have product designed for the automotive industry. Our DVI Motion Controls can be added to their product to further improve your ride.
 
   
 
  Q.
How much weight do the Steer Axle Stabilizers add to the front end of my truck?
 
  A.
Depending on the truck, Stabilizer kits weigh from 28 to 48 pounds.
 
   
 
  Q.
Can the Steer Axle Stabilizers be used as a weigh scale?
 
  A.
No. Donvel does not recommend this.
 
   
 
  Q.
Can the Steer Axle Stabilizers be used to raise my truck that has been lowered?
 
  A.
No. The Steer Axle Stabilizers are designed to control the excess bounce at highway speeds and do not provide adequate lift to raise a lowered truck.
 
   

 

 
   
Smothing the Big Rig Miles.