Is this worth the time to build

[HartelClan]

I went and looked at this bus and am set to buy it tomorrow but am struggling to ID the transmission to make sure it's worth it. It's listed as a 2001 Blue Bird Thomas with a CAT 3126 and 210K miles, full size 37 feet long. Mechanically the bus is sound with all maintenance records and the body is solid as well with no rust except some scattered stuff on the inside floor. The seats and subfloor have been pulled and there are a couple scattered rust spots on the floor which measure less than 12" diameter, but from underneath the frame and all components look great. I tried to ID the transmission when I looked at it but was unable, and with the VIN was unable to do so as well. The guy accepted an offer of $4000 so I want to check with people that actually know their stuff before I take on the project. The VIN is 1GDL7T1C8YJ521407. My plan is to build it out to live aboard full-time and off-grid at times while possibly flat towing something small or hauling my motorcycle. I am super excited to start this project but want to start off on the right foot. Thank you in advance! Hopefully this was the right place to post this

[o1marc]

It is most likely an Allison AT545, the least desirable trans for your application.
Do you remember if it had a stick shift on the dash, or a push button digital pad?

[HartelClan]

It was a stick shifter, not sure if that helps.

[o1marc]

Originally Posted by HartelClan

It was a stick shifter, not sure if that helps.

It does help, most likely the AT 545, Consider your options after reviewing more on this forum about that tranny.

[HartelClan]

Damn! Thanks for the info, I had read about that tranny through numerous posts here and was hopeful it was something else but was struggling with getting the ID.

[CHEESE_WAGON]

Here is some basic info on trans ID that should apply to most... Don't guess yourself out of a good egg before you know for sure. Some of this can be done from inside, some of it requires crawling under. I've noticed some newer ones (Thomas, I believe) will have trans ID with other pertinent info on a decal on the interior front roof cap. I've personally seen some 3126 Cat engines with MD3060s, just not sure if an '01 would have such a trans. Those are a digital keypad, but a stick shifter does not GUARANTEE an AT545. Check first.

Allison Trans ID.png

[HartelClan]

Thank you, I will have to get in there and take a closer look.

[musigenesis]

Originally Posted by CHEESE_WAGON

a stick shifter does not GUARANTEE an AT545.

My 2000-series (on a 2002 IC) has a stick shifter.

[WIbluebird]

MT643 and some 3060's have T handle shifters so that by itself is not a reliable indicator of transmission type.

[BamaBus]

There should be a metal label on the right side (passenger side in a normal vehicle) of the transmission that will have the exact model and will include the serial number. Most of the time they are covered in some grime so a rag will be needed to clean it off. Also the form you posted and on the Blue Bird portal, says this is a hydraulic brake system. If you wanted an air brake system, keep looking.