I’m towing almost every day with my 94 f350 idi turbo zf5 4:10 gears. I think the lightest load I’ve ever hauled was around 4000 pounds. I’m generally hooked to around 6-8000. Heaviest pull was 22,000 pounds. Truck handled it like a champ. I had to go to 35 mph in 2nd gear on a 8% grade with that load. Since then I’ve got a 3582 turbo and a 90cc pump from
@Thewespaul and towing is even easier now. Almost don’t notice my 6500 pound stock trailer behind me. In my opinion, it’s hard to beat the idi for reliability when towing. It won’t always be fast, but it’s rare if I’m not doing the speed limit when towing. New trucks go faster, idi will go far. I know some of the builds Wes has done will pull the same, if not outpull, as 6.0 and 7.3 powerstrokes.
All this being said, I am very biased towards the idi
I just know what I do and am able to do with mine