Need pusher rear end

[SDJunkMan]

If anyone out there is parting out a rear engined bus, I am looking for a pusher rear end, with air brakes, for a Flxible Clipper conversion project. Not sure what ratio I need, probably around a 4:10 but I need to do the math and figure it out. I am running a 3208 Cat at about 2700 RPM, with a 1:1 final drive on the tranny and 10.00 R20 tires. I would like to run about 75mph. I'm in South Dakota, and would like to find something close if possible, but will travel for the right deal.

[opus]

Give a call to Harlows in Bismarck, they might have something for you.

[frank-id]

Pusher rear assemblies are the exact same as the tractor assemblies. The drivelines are usually shorter. Go to a salvage yard and check out the layout. Frank

[SDJunkMan]

Originally Posted by frank-id

Pusher rear assemblies are the exact same as the tractor assemblies. The drivelines are usually shorter. Go to a salvage yard and check out the layout. Frank

No, they are not, according to the local truck clutch and gear shop the gears are different. Some people have flipped a front engined (tractor) rear ends and used them successfully, after changing all of the mounts, vents, fill hole, and brakes, but there is a difference in the gears and they may not oil properly. If I was just planning on using my bus for short trips to the lake and such, I might try it, but I plan on doing some serious long distance traveling with my bus, and don't want to take a chance of a rear end failure while on the road.

[frank-id]

Recently, a loocal truck repair changed the rear axle gears in a rear engine Thomas bus. The "new" used gears were removed from an old dump truck with conventional power train arrangement. I cannot discover any differences. The axle is merely reversed in position. Frank

[Jarlaxle]

FYI: a 4.10 ratio and 10.00-20 tires will give you about 1900RPM at 60MPH. That sounds about right for a 3208 Cat.

[SDJunkMan]

Originally Posted by Jarlaxle

FYI: a 4.10 ratio and 10.00-20 tires will give you about 1900RPM at 60MPH. That sounds about right for a 3208 Cat.

I was thinking a 4.10 would be about what I need.