Monday, Jul 28, 2003 at 20:29
Hi John.
I wrote an article a short while back relating to the disadvantages of an auto diff locker in loose sand and mud. I had a Detroit fitted to the front.
In a nut shell, in beach sand with as locked diff when you turn both
wheels travel at the same speed, result, one wheel turns the other acts like a bull dozer blade pushing sand until the sand mound gets that big that it stalls the vehicle. Also, as in most circumstances, when leaving a beach, half way up the exit track there is always a left or right turn. With the diff locked up, you go straight on instead of turning.
If you ease off on the throttle so that the diff can dis-engage, the vehicle looses momentum and stops. If you stop in loose beach sand and then try to take off, instead of the
wheels walking their way out, they both dig in usually resulting in getting bogged.
In mud, steerage is next to nil.
This is why I removed the auto locker from the front diff.
I now have an LSD in the front and an air locker in the rear. The ideal way to go is to have an air locker in both.
You may ask why I have the LSD in the front, reason,I managed to get a good deal fro Detroit for a change over when I told them of my problem. Too good to pass it up and I could not afford to go into an air locker at the time, which came to the rear
wheels later on in time.
Regards
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