Re: Engine mods on an 86 4x4 for towing a 3000lb. travel trailer???
A 3/4 ton won't care about towing #3000, other than the 700R4. Do NOT tow in OD. Do not try to set the land speed record. I towed much more than that with a 4.3 V6, run about 55 in 3rd gear and never had any issues. Travel trailers have big aero frontage so a cap may be advantageous. Change all the fluids, get the tune up spot on, and enjoy the cruise.
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1987 2 ton 
1982  250/TH350 beater in progress
Dad's 1981  3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping
Plus a mess o' tractors
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