I'm going to be pulling my truck for the first time. Its a 1989 w250 standard cab with aluminum flat bed. It weighs in at 5700 lbs. All of my mods are in my signature. I'm guessing 200-225 HP and around 550 lb-ft. It has 3.07 gears and open diffs front and rear. Front suspension is stock. Rear has homemade adjustable suspension stops and ladder bars. It will be running in the local county fair in the 8500 lb stock truck class. I really don't know anything and any input would be greatly appreciated. I don't even know around what tire pressure I should run. My hitch sits at 17 inches. Max in the rules is 26. Should I get it higher?? The track is a harder packed one. I have 75% tread Courser LT Radials on steel wagon wheel rims. I also have 90% tread Chapparal A/P tires on aluminum rims. Both sets of tires are 33x12.5x16.5. Would the Chapparals be to aggressive?? Will the open rear diff be a problem? Should I just weld it? Its already suicidal in the rain with the aluminum flat bed anyways. What should I set the suspension stops at? Currently on the street I have them at 3 inches of travel so the tires dont rub on the bed. What gears should I run it in? Limit it to 2nd gear low range?? Should I take off in manual first to take some stress off the sprag? Any other input would help.
I'm also going to be pulling my 77 w200. Built 360 with around 350 hp and 400 lb-ft flywheel. Built 727 with stock converter stalling around 2000 rpm. Stock np203 t-case. Dana 44 front and welded Dana 60 rear both with 4.10 gears. rear leaf pack stock with one extra spring for 8 total. Front suspension is stock 3 leaf one ton packs (was a factory sno fighter) with two extra springs. Running 33x12.5 tires. 350 lb 3/8 bumper up front and 250 lb 3/8 bumper in back. weighs 5200 in total. Same track but in the 7500lb stock truck class. Any tips on this truck would help also.
Not looking at making a full blown puller. I'm only 19 and just want something to play around with. As long as i beat the kid who only made it 130 feet in his first gen last year i'll be happy. First gear low range with a getrag doesn't work to good for getting up to speed. He found that out pretty quick.