is it a timing belt or chain

Here are the humbling specifications of what real Americans drive and
will continue to drive despite Socialist protestations. These vehicles
will continue to be the backbone of the American ego--I mean economy.
Ford F-250 Super Duty 4x4

My '99 F250 Super Cab 5.4 2WD (not SD) has a problem with the 3.73 limited
slip rear end; the clutches are seized, resulting in wheel hop noise on
tight turns, probably chewing up the tires prematurely too.
My mechanic got them freed up but when warm or towing my fifth wheel ...

I have the 2 piston front calipers on this truck.  The parts store says
that there are 2 different widths of rear shoes.
Does anyone know if the wider shoes correspond with the larger, 2
piston front pads?

I'm looking at a new F350 King Ranch 4x4 Diesel Duelly.
We went and drove it yesterday afternoon and returned to the
dealership right before closing time, so I'm pretty sure that the
truck wasn't moved or even started after we left.

I was asking questions about my truck which has a V-10 Triton a 1997
with 70K miles on it and one of the cylinders is low.  It looks like it
is a valve situation. I was wondering has anyone ever had any positive
results from something that is added to the fuel or oil? I bought this

A quick question on charging batteries.  I have a 2001 E350 with 2
batteries--1 regular one for the engine, and a deep discharge one for the
RV.  Is it OK to charge both at once without disconnecting them from the
usual wiring?  If this is OK, should the charger be set for deep ...

I a have 1978 clubwagon E-250 with the 460 and dual zone A/C.
What is involved in retrofitting the A/C with 134a refrigerant?
Is the valve on the curved tube just to the right of the compressor the low
pressure fitting, or a high pressure fitting?

Have a 1992 E 250 van. Bought new. Has auto transmission I think it called
an E04. Always maintained as user book shows. Has 51000 miles. Ever since
new it seems there is too much slippage when starting up in gear. Engine
races  too much, not a positive acceleration. Other brands ...

   have 98 econoline with the 4.3 v8 overhead cam engine. there is i
light knock you can feel all over the engine. i remember reading a
bulliten in the motor magazine years ago but was hoping someone here
might remember. its not piston slap or rod knock noise . is pretty

I have been trying to put freon in my 1995 F150. The compressor will
not run to allow the system to take the freon. I  know the compressor
to be good because I have had to have freon added each year. I have
been told that I need to jumper something to get it to take the freon.