Re: 4wd truck vs. 2wd

Posted by jdemaris on August 25, 2010 at 12:22:32 from (67.142.130.37):

In Reply to: Re: 4wd truck vs. 2wd posted by chevytaHOE5674 on August 25, 2010 at 10:31:32:

Hey, " to each his own." If you like your lockers, that's fine with me. I've be driving bad roads, and/or on virtually no roads in ice and snow, on mountain hills for over 40 years - in northern "Northeast Kingdom" Vermont, Maine, central New York, and the central Adirondacks. I've also watched many truck and SUV drivers go "off road" when it wasn't in their plan. Especially those with oversized tires and posis.

All a person has to do, with an open differential, is gradually apply the brakes until all the wheels cut in. Or if just rear wheel drive, you can do it with the parking brake. Of course I'm talking older trucks before anti-lock braking came into vogue.

I've driven many vehicles with posi (clutch-locking) differentials and every one of them was terrible on steep hills that were crowned (high in the middle and low shouders). Otherwise, they worked pretty well. Now has there been improvements with them recently?? I have no idea. Maybe some newer ones are better controlled. I'm talking about the wet-clutch driven posis that were common 1960s-1990s. I don't know if something new has evolved or not with standard equipment on autos and small trucks. My 83 and 89 Chevy K5 plow trucks both have rear posis, but thank heavens they haven't worked in years. They just perform as open differentials.

The reality is, when my road is iced over, I'll go up it in a open-differentialed Subaru 4WD with half-bald tires, whereas a full size Chevy with 4WD and posi can't make it. Done it many, many times. But that's more about the Sub's low center of gravity, small skinny tires, low weight, etc. Our house is at the breaking point on the hill where just about every dumbbell gets stuck, and/or loses it - in the winter. That's why the town keeps threatening us with Eminent Domain. That to take our land, widen the road, pave it, salt it, etc. Just to please the people who don't need to be here anyway, come winter. We have no neighbors and are the only full-time residents on this "unimproved" road.

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