Posts: 2,305
Threads: 44
Joined: May 2012
(08-18-2017, 07:41 PM)Mustangmike Wrote: Hi YLWHRSE,
I don't think the C4 casting necessarily correlates to the spline size of the transmission. Here is a link to David Kee's wed site which shows the casting ID's for different tailhousings and you can see some of the C4 casting numbers are 28 spline. It appears the 25 and 28 spline are interchangeable on the C4 tailhousings. I am pretty sure my transmission's tailhousing is a C4 casting number and it is definitely 28 spline. I will verify my casting number and let you know.
http://www.davidkeetoploaders.com/tailhousingid.htm
Posts: 1,330
Threads: 34
Joined: Feb 2015
I wondered with the C4 casting number, if sometime in the cars life, an early 25 spline toploader trans was installed.
Posts: 4
Threads: 2
Joined: Mar 2020
(05-31-2017, 09:46 AM)ylwhrse Wrote: HELP I am in need of a tailhousing for a 71-73 Mustang or cougar top loader 4 speed trans. Engineering number on tailhousing is under shifter mounting pad C4ZR-7040-A. I blew up the main shaft/output shaft in mine on my 3rd pas and it took out the tailhousing and slip yoke. I have all the parts coming but a tailhousing. Please help !! Feel free to msg me or call my cell 307-202-0652. Desperatly trying to find the part to make the June 11th race.
YLWHRSE
I may have one if you have not found one yet, I am new here today, Pete 707-849-0352
Posts: 4
Threads: 2
Joined: Mar 2020
(05-31-2017, 08:28 PM)Mustangmike Wrote: Hi YLWHRSE,
I just sent you a PM but was not able to upload pictures. The only tail housing I have lying around is part number DOZR-7A040-A. I don't think this will work for your application. If you are in a real hurry, David Kee Top Loader's sells a universal tail housing.
Sorry,
Mike
Mike, I am new and can use that tail housing, it would be correct for one of my trans that the tail shaft housing has been changed, let me if you still have it and would sell it, Pete rudo9@comcast.net