wow what kind of power do you think those trucks are making?
You can tell they are geared SUPER LOW... 5.13 or lower probably
Ummm....5.13s aren't super low gearing. Its more on the high end actually. That truck is running rockwells (look like possibly 5 ton top loaders), hence its closer to 7.17. If you had 5.13s in there you'd barely be able to turn those tires.
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99 F250 PSD 4x4, 5" DIY exhaust, CCV mod, DIY intake, PMT1 with DP Tuner chip (stock/40/80/120), BTS VB, Suncoast Extreme Trans with SD43 converter, FASS fuel system.
Trail Rig: 95 Ranger on Kingpin D60/14 bolt/D&D Doubler.
Rockwells most common 6.72's. But can be a lot lower (like powerstoke said the 7.17 is also used, just not as common as the 6.72's due to posible breakage of the ring and pinion)
Probably at LEAST a doubled T-case, could be tripled, all with low gearing (I have seen as much as 10:1 in ONE transfer case)
Pushing those tires, he is probably close or over the 200:1 crawl ratio (I have seen Suzuki Samurai's this geared as well... come play on the rocks, we like gears ! )
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