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Old 11-08-2017, 10:37 AM   #201
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Join Date: May 2009
Location: Columbus Ohio
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Year: 1991
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Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
are those upshifts at full throttle? and with the shift modulator cable adjusted to where its nearly all pulled out on full throttle?
-Christopher

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Old 11-10-2017, 02:56 PM   #202
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Dave,

I sent you a PM awhile ago and I am not sure whether it went through or not but let me know if I need to send it again.
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Old 07-03-2018, 10:34 PM   #203
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Year: 2000
Coachwork: international
Chassis: blue bird t444e 6 window at545
Engine: 7.3 international
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bolt the mt643/653 up to a t444e,

Quote:
Originally Posted by Kubla View Post
I got lucky today, got a technical diagram from an Allison distributor showing all the parts needed to bolt an MT643 to a TE444, do not know how to post a PDF to this forum since I do not think I can put it on my smugmug page
I found this after a quick search on google.... 7.3 might not be bad


here's all the part numbers you'll need to bolt the mt643/653 up to a t444e, per allison drawing as04-317, which I can email to you if necessary.

If it's a mt644/647 or 654, that's another ballgame.

From navistar:
1821697c1 flywheel housing
1800777c1 ring gear
1818211c1 flywheel
25500r1 bolts, trans to engine, 12 needed
25709r1 hardened washer, 12 needed
1823406c1 flywheel bolts, 10 needed

from allison 23014107 convertor nuts, 6 needed
29519143 crankshaft hub
23018900 flywheel housing adaptor
23045171 flexplate adaptor
29519142 flexplate
29514856 crankshaft wear plate
23046154 convertor washers, 6 needed
23049056 flexplate bolts, 6 needed
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Old 07-04-2018, 07:40 AM   #204
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I need to figure out the exact flexplate parts i need for a 643 to a OLDER DTA 360 /466 i know I need an 8 bolt pattern.. should know more once I get my trans out.
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Old 08-01-2018, 03:41 PM   #205
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lost of good info here. i started my own thread. if any of you guys can help me find what i need to put a MT653 onto my cat 3126 please chime in


http://www.skoolie.net/forums/f33/20...tml#post284026
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Old 08-01-2018, 04:26 PM   #206
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Quote:
Originally Posted by SQ is the SQUAD View Post
lost of good info here. i started my own thread. if any of you guys can help me find what i need to put a MT653 onto my cat 3126 please chime in


http://www.skoolie.net/forums/f33/20...tml#post284026
I'm looking to swap a 643 for the 545 that's behind my Cat 3126.
Still gathering info but its definitely do-able. There are lots of 3126's with 643's out there, just gotta get the right flexplate and a some other stuff.
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Old 08-01-2018, 04:36 PM   #207
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Quote:
Originally Posted by EastCoastCB View Post
I'm looking to swap a 643 for the 545 that's behind my Cat 3126.
Still gathering info but its definitely do-able. There are lots of 3126's with 643's out there, just gotta get the right flexplate and a some other stuff.

let me know how you make out. i am still trying to figure out this info
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Old 08-01-2018, 08:06 PM   #208
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Quote:
Originally Posted by SQ is the SQUAD View Post
let me know how you make out. i am still trying to figure out this info
Call up a truck parts yard and ask them what you need. I'm still figuring it all out and it will be a while before i'll be ready to do it.
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Old 01-20-2019, 01:20 PM   #209
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i've put about 2000 miles on the transmission now and i have to say that i like the locking!

it makes the bus very trust worthy on a hill. no more run aways.

my top speed is limited now by my rpm. i can make 69 on the flats ands 72 downhill. no faster. used to be i could roll the at545 down the hill in the 80 mph's, but no more. that thing holds tight.

i just towed a 6000 lbs trailer 1600 miles, through the rockies, including wolfcreek pass. i'm 22k +6K makes 28K total. i never broke a sweat as to the bus performance both up and down hill. solid as a rock.




enjoy wolf creek pass

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Old 01-20-2019, 04:01 PM   #210
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Lockup sure makes a difference on a bus! Glad its all working out for ya.
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Old 01-20-2019, 06:09 PM   #211
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Yeah...once you've gone Lockup...you can never go back.
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Old 01-20-2019, 11:12 PM   #212
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Amen to that!!

John
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Old 01-21-2019, 06:35 AM   #213
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this rocks!!!!! so glad this trans swap worked out after all the initial issues!!! 2000 miles is a great test that it will last a long time!!



-Christopher
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Old 03-07-2019, 07:29 AM   #214
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Thanks for all the info! Glad everything worked out yo!
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Old 03-13-2019, 09:25 AM   #215
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Outstanding thread, 2000 miles of success after some trials and tribulations.
Have you tracked you updated fuel burn?
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https://www.skoolie.net/forums/f11/97...ion-22324.html
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Old 03-13-2019, 01:16 PM   #216
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i have not checked the mileage since the swap.

the speedometer output of the original and the new one were different. so now at about 70mph, my speedo reads about 15mph. same with the odometer.

i want to get a hub odometer or something like that to track miles. i can get gps to be my speedometer, but i haven't got an odometer solution yet
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