Top speed.

[OBS>SD]

I was just wondering what the fastest you guys have ever got these trucks up to. I know the speedo stops at 90 but what do you think these trucks top out at? Me I have never even got the needle to 90 mabey 85 passing.

[Nashotah7]

Have sent the needle past the end many times, once trying to catch my girlfriends Mustang, never did catch her, but was gaining and she later said she was at 105.

[elrojo63]

I'd say about 105 or 110 is the limit without gearing changes. By 100 you're almost up to yellow. Idk how fast I was going (iphone gps and no service) but had it floored in 5th for about 3 miles across flat land.... felt like my truck was about to fall apart on me

[66Bronco]

Depends on the rear end gears. In my '95 with a ZF5 and 3.55 gears, at 3500 RPM, it'll do 135. Screaming, but she'll scoot.

[85_305]

I've seen a video on youtube of a bone stock 7.3 OBS doing like 120 or 130. It was pretty cool. I dont remember if it was gps verified or by another car or what.

[351fifty]

I've had mine pegged real good with a load, let off it took a couple seconds to come off the peg, I'm only assuming 120 110

[elrojo63]

Originally Posted by 66Bronco

Depends on the rear end gears. In my '95 with a ZF5 and 3.55 gears, at 3500 RPM, it'll do 135. Screaming, but she'll scoot.

how was that verified? I've got 3.55 gears and i was told we were going 110 close to yellow

[dereku]

Had my OBS at 105 or 110 my SD with 38s I had at 135ish very unsafe but hey I just bought it.

[OBS>SD]

At 85 mines running like 2300-2400 rpms? I think not positrve but that seems about rigt when I'm passing.

[atvrider93]

Originally Posted by OBS>SD

At 85 mines running like 2300-2400 rpms? I think not positrve but that seems about rigt when I'm passing.

you must have 3.55s. mine is at 2500 RPM at 75 with 4.10s. personally I dont feel too safe after about 85 in a 7500lb truck