Interesting truck. I was curious to see if he'd regeared due to the 35" tires and he did - 4.56's. And our calculator says he's right, it should be turning 3000 RPM at 70. At first I thought that he should have put a ZF5 in as it would drop the R's to 2300 at 70, but then I remembered that the T18 has the 6.32 first gear while a wide-ratio ZF5 has 5.72:1. So for offroad he chose wisely.
Also, this truck has both the trim on the wheelwell opening as well as the trim ~3" away. I don't like that as it looks really busy and, if I remember correctly, Ford never delivered trucks with that combo.
Last, I'm not sure it'll get the $18K he's asking. I find you tend to get 1/2 of what you've invested, and at $14K plus the original price of the truck, which I'll assume was $4K, that's $18K and I'll guess he won't get more than $10K.
Gary, AKA "Gary fellow":
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI