Quote:
Originally Posted by Stretch56
I tow a 13000lb 5er. Usually always OD off. Unless flat with a tail wind. Seems to never happen when I'm towing. I like to sit and drive, OD off the truck will cruise up and down with no down shifting. EGT's stay alot lower with the increased RPM's. I'am one that keeps the speed down, about 57, helps save the fuel.
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uh;..yeah I would say if you weren't planning on reaching at least 62mph, then yes, OD off would about be the only way to go with a heavy load; however, I think most people cruise at a much higher rate of speed. Personally I don't have the patience for 57mph...so hats off to you for that 
I'm no speed deamon (although I'm known to get my 19k gross rig flying downhill at over 80mph quite often).
My outfit likes to cruise on flat ground at 70mph real nice. OD locked up and tons of torque right there at 2k rpms and egts stay in check for decent MPG.
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 y2k F250 170k miles 4x4 (nv271 manual t-case) 7.3 #1247981 1/18/00 (forged rods), 3.73LSD, non-diode AT, ext cab long bed 265/75/R16 E rated tires, Dp tuner 60t 60e 80t 80e, DIY 6637 air filter, wicked wheel, turbo master WG controller, turbo lifesaver, bellowed up pipes, 4" downpipe & exhaust, triple pod glowshift gauges (egt, tranny, boost), Ride-rite 2330 air bags. Sports a Western plow when the white stuff flies.
Trailers:
I'm usually towing 1 of several trailers I've built.
15ft car hauler (1000lbs empty; 5500lbs loaded)
26ft deck over car hauler (1500lbs empty; 7k loaded)
36ft car hauler (Was tongue pull; have since converted into 5er'. 3200lbs empty; 12k loaded)
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