Super Duty & Heavy Duty1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
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I cant find the info in the owners manual or on this site. I know I have seen it somewhere. What is the max recommended speed while in 4wd Hi? As in hard packed snow on the hiway (other than good common sense)
There really isn't any problem running high speeds in four high, as long as the front drive shaft is well balanced there is really no differnce, there would be a little more heat in the transfer case, but as long as it was slick out you would be ok, I wouldn't be afraid to run any speed in four high, but usilly if I can drive 50mph+ I am in 2wd anyways.
'00 F-350 Super Duty XLT 4x4 5.4 4R100 3.73s Reg. Cab Loaded, Snow plow prep., Camper pack., trailer tow pack. All the other stuff that makes a truck cool
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