I agree with making sure that all of your tires are the same size. I wanted to add that many 4wd pickups have slightly higher ratios in the front axle in an attempt to make the front pull harder than the rear to make the truck track better. I do not know about M715's, but my Dodge W300 has a 4.09 front ratio and a 4.10 rear ratio with a part time 4wd setup. My truck will jam up as soon as it hits macadam. What I do is shift out of 4wd and into neutral while I am still rolling in the dirt. I then stop and shift into 2wd and I'm on my way.
Dave Fillman
45 MB
---- you wrote:
> if you have problems disengaging from 4 wheel drive there can only be
> one culprit.....driveshaft wrap up. remove all the tires and measure the
> tire circumferance with a fabric tape measure (a fabric one wraps around
> the tire smoother than a metal one) and arrange the tires so that the
> front and rear tires average the same size. if both drive shafts turn
> the same speed there will be little problem. while driving slowly
> straight forward and applying some reasonable pressure to the shift
> lever it will come out. by the way this is important on trucks like the
> m35 also. select tire sets so that both rear pinion shafts turn the same
> speed to avoid tire wear.
> tom m35
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