I have had a 1979 Ford F150 pickup truck for about 7 years. It was a
piece of junk when I bought it, but I did some work to it and got it
in halfway decent shape, except for the badly rusty bed/box, which is
This old 79 truck with it's 400 engine and auto transmission sucks gas
like crazy, and the engine is properly tuned. I probably get 8 MPG at
the most. Considering the price of gas, and the fact the bed/box is
starting to literally fall off the truck, not to mention the
transmission seems to not want to engage when I first start the truck,
(yet works fine after I get it going), among other problems, I decided
it was time to retire this truck as a road vehicle, and just keep it
as a farm vehicle until it totally dies.
I am a farmer and use my truck to haul loads of hay and pull heavy
trailers, etc. I also live in the north and need something to get me
thru snow and ice, or mud on my private farm roadways all year around.
In October I decided it made more sense to buy a newer truck in better
shape, rather than stick any more money into that 79, especially since
I could not afford to drive the thing with gas being $3 a gallon. I
found a fair deal on a 1990 F150 truck with a 302 engine, 4speed
manual transmission and fairly decent body. This truck ran well, but
needed brake work and the front universal joints replaced. I bought
it, replaced the joints and brakes and ended up with a decent truck
with a bed/box that would not fall off when going down the road. It
preformed well when loaded with hay, and got much better gas milage.
I was happy until we got a snowstorm last week. After I cleaned up
the deep drifts on my roadway with my tractor, I put the 1990 truck
into 4WD and could not get out of my farm. The truck just can not
bite into the snow, even with fairly good tires. I finally parked it,
and got in my old 1979 truck in 4WD and was out of the farm in
Why does the old 79 truck (with worse tires) bite into the snow, while
the 90 truck just spins (with better tires). Does anyone have any
ideas? Both are in 4WD. All I can figure is the older truck is
heavier. I know the engine is smaller on the new truck, but the
problem is not engine power, it's the lack of ability to bite into the
However, someone told me that the newer 4WD Ford trucks dont have the
same differentials and they lack something, and are not really true
4WD ?????? I dont know if I understand that ?
What's the deal with this? If I cant use this newer truck to get thru
snow, I may as well sell it now, because it's not doing me any good
sitting in front of my house, unable to use in winter. In fact, my
wife's 1989 full size Chevy station wagon gets thru the snow better
than this 90 F150 with 4WD.
Just so you know, the 4WD is working correctly on all wheels. While I
did my own brake work, I had a shop replace those front univ. joints
and they checked the whole 4wd to insure it worked.