4WD High- how fast
Junior User
Joined: Sep 2008
Posts: 78
Likes: 0
From: Salt Lake City, UT
I only drive my '86 F250HD around town with the transfer case in 4 HI when the weather has gone to crap. If it is bad enough for me to lock in the hubs and shift to 4 HI, speed isnt my main concern, and I am usually doin 25-30 mph tops around town. Off-road, I will hit 50-60 on local gravel and dirt roads while in 4 Hi, and haven't had any problems yet. I have never seen an owners manual for my truck, and haven't ever really looked into it, so I have no hard info for ya, just what I have done..........which dosen't make it correct 
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Yes... with road conditions being the limiting factor.
