Drive shaft Question.

I would think that it would decrease the rolling friction and improve the gas mileage a bit, but your transfer case might get damaged -- I somehow remember asking that question and getting that answer about my '81 CJ-7 in a bulletin board back in the late 80's. I can't remember the reason(s) given.

You wouldn't gain anything other than easier access to your oil filter.

oh ok, thanks for the help, and dont you mean I would get easier access to the fuel filter?

This Jimmy gets 10mpg right now if I am lucky, ever since it ran outta gas about a month ago, its puttered and given me a cylinder number 4 misfire I've ruled that down to the fuel injector clogged, I ran techron through it for 5 tanks and no results so I'm trying other methods to increase fuel milage.

buy yourself a little old economy car and it will pay for itself in a few months with current gas prices.

the mileage wont improve until you fix the miss.

oops, I was thinking full size truck.

Yeah, if I could find one around my area they are scarce, very scarce.

Thanks, but were the heck are the injectors on the 4.3 engine located??

errr-- might want to learn something about transfer cases, first.

There won't be any damage whatsoever. There also won't be any improvement in mileage, other than the .001mpg from not carrying around the 10 pounds.

why not address the most likely problem-- a bum fuel pump, from your having run it low?

Or a plugged filter.

On the driveshaft, if it's anything like my S-10 (though the ZR2 IS different I think), the t-case end of the driveshaft is a CVJ that slides into the t-case.

he was referring to the FRONT shaft, though.

I really doubt there's a slipyoke on the front shaft. But yeah, if ther is, removing it would be a Bad Thing....

well the reason why it ran out was the sending unit is bad, it said we had

They are sitting under the plastic upper plenum.

Ian

What kind of 4x4 switch do you have on the dash? If it has an "Auto4hi" position, don't remove the driveshaft, if it just has 4hi, 2hi, 4lo...removing the driveshaft is ok, but won't do anything for your gas mileage. It doesn't turn in 2hi if you don't have the auto t/case.

Ian

dopesn't matter why it ran out. Running out of gas is bad for the pump.

I'd do a pressure/volume test on the pump before I went much further. Make sure to test under load as well.