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| | | | Joined: Oct 2024 Posts: 5 'Bolter | | 'Bolter Joined: Oct 2024 Posts: 5 | Hi, new here. I have a '50 4100 chassis cab..used to be a small fire brush truck. Has only like 2500 miles! I built a flatbed for it. I would like to swap out the rearend..or whatever you guys think. It's geared soon low. Would like to drive it at highway speeds. Thoughts? Was thinking of putting airbags on it as well to improve the ride. It's a dually. Thoughts on different axles? Wheels? Thanks | | | | | Joined: Sep 2006 Posts: 1,997 Big Bolt Forum Co-moderator | | Big Bolt Forum Co-moderator Joined: Sep 2006 Posts: 1,997 | Welcome, I am sure you will get several suggestions from guys who have done modifications to increase highway speeds. Here is one link I found just during a site search that might get you started with some ideas. https://www.stovebolt.com/ubbthread...p/Search/true/rear-axle-swap#Post1128284Pretty sure I have seen others in the past.
A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired. 1948 Chevy 2-Ton | | | | | Joined: Sep 2009 Posts: 5,886 Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT | | Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT Joined: Sep 2009 Posts: 5,886 | A 2nd Welcome to Stovebolt from me! You might want to look at posts like this one by TUTS 59 on his Task Force 1959 4100 axle upgrades. It is a later truck, but maybe will help stir up the thought juices to help you find a solution to what you would like to see out of your truck. Don't forget upgrades to braking and steering to go along with that increase in speed! You can get there, just do it safely. 
~ Dan 1951 Chevy 3 window 3100Follow this story in the DITY Gallery"My Grandpa Carl's Truck and How it Became Mine"1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
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