Dear Mr. Yale,

I recently purchased a set of the Donvel Steering Axle Stabilizers at my local Peterbilt dealer. I have used them for two weeks now under a variety of load conditions. I have thought about this letter for more than a week. I wondered if I should try to express my complete satisfaction, or if I should be brief and simply state how pleased I am with what, at the time of purchase, I thought to be a pricey gadget.

Well, I decided that some elaboration would be in order. I knew if I tried to describe completely the revolutionary changes in ride and driver fatigue I have experienced, it would sound as if I was being paid to write this letter. Additionally, it would take many pages to express adequately how I feel about these devices.

First, as a long-time mechanic, I immediately noticed the total quality of workmanship. Every weld is symmetrical, quality, name brand components are used throughout and even the nuts and bolts are high end. The installation, which I did myself, was uneventful. It was so simple I was able to do the complete installation in about two hours using tools any home shop would have. The instructions were so accurate and complete, I would have been able to install the system by simply looking at the picture - though I did read every word just to make sure. I had one technical question that you were able to answer immediately when I called your toll-free number. Heck, you even answered the telephone.

Second, as soon as I rolled down the street for a test drive (bob-tail), I was able to experience a difference in the softness of the ride and the ease with which the truck rolled across a railroad crossing. I always thought that most of the harshness of my 377 set forward was caused by the rear air-leaf suspension. Boy, was I surprised to learn how much of the problem was coming from the front.

Third, during the last two weeks I have been amazed at how much driver is left at the end of 10 hours. I think this is attributable to being able to adjust quickly to varying road conditions. I have been able to get a smooth, stable ride in virtually every road-load situation.

I could go on and on, but time and space prohibit. I offer my road cellular number for testimonial to any potential purchaser. I will be happy to lend whatever assistance I can to the end of getting a set of these things on every Peterbilt. They should be standard equipment from the factory.

Sincerely,
L. Hill

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