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Old 03-20-2016, 10:58 AM   #11
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Location: GA, by way of NC and VA
Posts: 140
Year: 1995
Coachwork: Bluebird
Chassis: International 3800
Engine: T444e
Rated Cap: 66
Thanks so much, Coach! I'll do some research on those type C buses. It sounds like the decision to be made in this case is between highway riding comfort and agility off paved roads? I say that because it is my understanding that shorter wheelbases give a bouncier ride on highways. Also, is there a way that one can tell a bus' gear rating (or top speed) without seeing it in person? I guess what I mean is, I imagine that just knowing the engine type doesn't necessarily mean you can know if it is geared for highway travel. Correct?

BigPaul, I am in Savannah. Where are you? Also, great suggestion about making a video of the buses you scout.

Thanks everyone for the great information! EastCoast, I'm about to check out that video now. Also, Althea is a potential name for our bus. ;) I thought about Rambling Rose too, but surely there are a few of those out there already!
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Old 03-20-2016, 11:27 AM   #12
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Year: 1946
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Chassis: 1- 1/2 ton
Engine: Cummins 4BT
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The only way I know (other than driving it) to determine any units top speed is to work it out on a speed calculator like the one below. But to do that, you need all the critical numbers...
Axle gearing
Trans final gearing
Tire height
Preferred engine RPM

Get those and you can nail it.

Engine RPM Calculator
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Old 03-20-2016, 03:17 PM   #13
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Year: 1986
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Chassis: Ford
Engine: Detroit 8.2
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Originally Posted by Tango View Post
The only way I know (other than driving it) to determine any units top speed is to work it out on a speed calculator like the one below. But to do that, you need all the critical numbers...
Axle gearing
Trans final gearing
Tire height
Preferred engine RPM

Get those and you can nail it.

Engine RPM Calculator
Thanks Tango. Are you sinking or swimming? Obviously high and dry so far if your posting.
I want your 545 for free I just need to figure out when and how?
I have family all over your area and my cousin closest to you moved 2-weeks ago? Don't scrap it yet.
Back to the post
I know my rear end, my 8.2 say's max rpm nl (I assume no load) 3050 rpm.
I want to pull a trailer/car/something at least through Georgia, Alabama on I-20 between nc and texas is what I am trying to build for.
I have all the info for the calculater except the at-545 gear?
I do have the original build sheet that has a lot of info. That don't match anything on the WWW?
Part#E4HS 7003 DMA
TSL
Trans Assy (MN)
Part description.
At545-2301/5189
Type
DSO 4857418?
I understand cowlitz, deezle and you.
Don't have/cant find the preffered rpm for the 545 tranny?
Gonna do a rear gear/end change just can't find the info?
I started out looking at chicken coops butt as always I end up here?
I work outside for a living and I was suppose to finish my coop today but the weather sucked?
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Old 03-20-2016, 06:15 PM   #14
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The final gearing on an AT545 is direct.

If you are looking for the ratio for your rear end there is supposed to be a little tag that is held on by one of the rear cover bolts. It is usually at the top curbside on either the front or the rear of your rear end.

It that tag is gone, which would not be unusual, you are going to have to figure it out the hard way.

You will need to block the bus and lift one of the rear tires off of the ground. Mark the tire and the driveshaft. Rotate the tire one full revolution while counting how many times the driveshaft rotates. It won't be exact but it will give you an idea as to what your final gearing is on your differential.

Anything under 5 will give you at least 60 MPH.

Anything under 6 will give you at least 55 MPH.

Anything under 7 will give you at least 50 MPH.

Anything over 7 will give you a max speed of about 45 MPH. And yes they make them that way. I had a 1977 IHC/Blue Bird that had a max speed with the foot to the floor of 47 MPH. To be fair, it would do 47 MPH all day long regardless of the hill or the load. But 47 MPH makes for a really long trip anywhere!
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Old 03-20-2016, 09:36 PM   #15
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Ya...all AT's are a simple 1:1 final drive. And I didn't go back to see what engine you are running but 3050 is a LOT of RPM's for most diesels. My old Detroit 6V53 ran at 3000 but then it was one of the tightest winding diesels ever. Most newer engines need to stay around 2000 or less (My Cummins sweet spot is only 17-1800 RPM).
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Old 03-31-2016, 09:56 PM   #16
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Join Date: Feb 2016
Location: GA, by way of NC and VA
Posts: 140
Year: 1995
Coachwork: Bluebird
Chassis: International 3800
Engine: T444e
Rated Cap: 66
Back again and hope that everyone's having a great week! Just wanna know if y'all have any thoughts on the combo of a DT466E and Allison 2000 in a 2004 IC CE 300? She has about 160k on her...
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Old 04-01-2016, 02:08 PM   #17
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Join Date: Nov 2015
Location: South Florida
Posts: 112
Year: 1990
Chassis: Chevy Blue Bird Mini Bird (P30)
Engine: GM Diesel 6.2
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Originally Posted by EastCoastCB View Post
Get one from a district that has mountains. Colorado buses all come ready for the mountains. And their climate doesn't destroy buses.
Idaho, Utah, Washington, and Oregon can also have some great buses. Colorado buses have to come with a driveline retarder. Look up those if you're not familiar, there are some demo vids on youtube.
I may be in some trouble with my Florida bus
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Old 04-01-2016, 02:10 PM   #18
Skoolie
 
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Location: South Florida
Posts: 112
Year: 1990
Chassis: Chevy Blue Bird Mini Bird (P30)
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Back again and hope that everyone's having a great week! Just wanna know if y'all have any thoughts on the combo of a DT466E and Allison 2000 in a 2004 IC CE 300? She has about 160k on her...
If I remember right, the DT466E is an okay engine. With that said, I don't know too much about this stuff yet. I'm learning..

I also bought a bus without a transmission and an engine (that I pray works).

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Old 04-25-2016, 04:06 PM   #19
Skoolie
 
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Location: GA, by way of NC and VA
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Year: 1995
Coachwork: Bluebird
Chassis: International 3800
Engine: T444e
Rated Cap: 66


Thoughts on the look of this undercarriage??
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Old 04-25-2016, 06:39 PM   #20
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Location: Eustis FLORIDA
Posts: 12,131
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
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Originally Posted by rjnye79 View Post


Thoughts on the look of this undercarriage??
Looks pretty good. And AIR RIDE is great.
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