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| | | | Joined: Aug 2006 Posts: 36 Apprentice | | Apprentice Joined: Aug 2006 Posts: 36 | Does anyone know the ratio on a single speed 46 2ton, or were there more than one ratio available?Also I can get a rear out of a 1960 40 series with 18" duals.Would anyone know the ratio of it?The brakes on both of them will need to be rebuilt, so am wondering, if the newer rear axle would be a better one to put in the 46?Or will the diffs,interchange?Sorry for all the questions, but am trying to figure out the best way to get the46 roadworthy, and drivable at about 55 mph. Thanks Jim. | | | | | Joined: Jul 2003 Posts: 15 Apprentice | | Apprentice Joined: Jul 2003 Posts: 15 | I don't know about the newer trucks, but here are the ratios for the '46 2-ton. According to my reprinted manual the standard ratio was 6.17 with an option for 5.43. The two-speed version was 8.22/5.64 with the option of 8.22/6.17.
Cautions/warnings are posted regularly about increasing your top speed while maintaining the original kingpin front ends and brakes.
I'm mulling the same question on mine. Good Luck.
When I find out what I'm doing, I'll let you know if I'm in too deep.
| | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | I see no problem with kingpin front ends and speed. Every big rig I know of has a kingpin front end and most can go plenty fast.
The only concern is that they are not worn out.
As for brakes, the old brakes on our trucks should be fine at moderate speeds if they are in good condition and you are unloaded. As you approach a full load I would try to stay under the max speed the truck would go originally, about 45 or so for a 2 ton. Experience will tell if they are good enough for speeds faster and with more weight.
If you want to go fast all the time I would at least upgrade to a dual circuit brake system / master cylinder. | | |
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