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Chicago Aux. Trans.

Posted: Mon Feb 07, 2022 9:31 pm
by Craig Leach
Hi Guys,
A freind just picked up a Chicago Aux. trans is the pocket (center of main shaft beraing ) like a Warford made out of unobtainium or is it a standard type bearing that is available? Thanks.
Carig.`

Re: Chicago Aux. Trans.

Posted: Mon Feb 07, 2022 10:43 pm
by Dropacent
Craig, I was up to my elbows in them a couple years ago here. ( thanks mike !). There are at least two different types, one appears to be pretty common bearings and the other was a real wild style, something prehistoric looking. They WERE NOT interchangeable, and I had enough of the good modern looking ones to complete my mission. I forget now if the cases were interchangeable. Hope this helps a little.

Re: Chicago Aux. Trans.

Posted: Mon Feb 07, 2022 11:30 pm
by Craig Leach
Tim,
The way my luck goes this will be a jarasic park one. I forgot to ask what the length is on them are they the same as a warford? This may turn out to be one of those I should have said gee I cant even spell model T things.

Re: Chicago Aux. Trans.

Posted: Tue Feb 08, 2022 6:33 am
by dang.1922
I have 2 Chicago transmissions and the cases are different. The input shaft bearing bore is larger on one. Both use the same bearing in the center. Bearings were still available last fall, and I think that bearing is the same as the cluster gear bearings. Dan

Re: Chicago Aux. Trans.

Posted: Tue Feb 08, 2022 9:56 am
by Michael Peternell
If I remember right the case's with patent pending on them had the oddball bearings.

Re: Chicago Aux. Trans.

Posted: Tue Feb 08, 2022 12:28 pm
by walber
Side request - does anyone happen to have a spare input shaft for a Chicago? I really like the transmission but the square part of the shaft the goes into the 4th main is beat up giving excess lash in the driveline.

Re: Chicago Aux. Trans.

Posted: Wed Feb 09, 2022 9:23 am
by Craig Leach
Thanks Guys,
Looks like it will be on the bench soon.
Craig.