• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Transmission advice
#21
You bought a column-shifted FMX. The black bracket supports the end of the shift cable from the column. You can swap your current bellhousing onto the new unit without disturbing the transmission internals.

Personally, I'd swap the shift linkage bellcrank from your current correct transmission into the replacement. That way, everything will bolt up and work as the factory intended.


  Reply
#22
(01-07-2019, 09:06 PM)Hemikiller Wrote: You bought a column-shifted FMX. The black bracket supports the end of the shift cable from the column. You can swap your current bellhousing onto the new unit without disturbing the transmission internals.

Personally, I'd swap the shift linkage bellcrank from your current correct transmission into the replacement. That way, everything will bolt up and work as the factory intended.


I kind of thought that might the case since most trucks have a column shifter. I know they are different on the C4 and C6, but didn’t really investigate much about the differences in the FMX. I read in another forum that the tail shaft and housings are of different length and that both would need to be swapped to keep the same speedometer gear. Does anyone know if that is accurate? I measured the transmissions and they both seems to be the same length. Both tailshaft housings measure approximately 13 and 1/4 inches.

So the suggestion would be to swap the bell housing and also swap the range selector arm? The range selector arm swap would imply dropping the pan and valve body, correct?


Sent from my iPad using Tapatalk
  Reply
#23
So I ended up swapping the bellhousing and range selector arm/shifter linkage from my original transmission to the replacement. The transmissions were swapped this past weekend. (I ended up hiring a mobile mechanic and tagged along to learn) I took the car out for a short test drive and it seems to be working well. The transmission engages immediately, there is no delay or "morning sickness" anymore. I might have to adjust the shift points, but will have to do some research into how to do that. I felt it shifted a little funny under hard acceleration.

It was a short drive because my differential has a small leak and my registration is expired; and there is a constables office about a block from where I live. I will take it for an inspection now that it is driveable and get the registration. I also swapped the stock 2 bbl intake and carb to a Weiand intake and Edelbrock 650 cfm carb before the transmission started slipping badly. So I have not been able to really test drive it properly with the new intake/carb combo to check driveability.
  Reply
#24
so how complicated is the AOD swap? I have heard different things about crossmembers and the like. I would like to put an AOD in my 72 convert behind a 347 stroker
  Reply
#25
Like most things, forum members have already done it. This one is in a tutorial, you can find others by browsing or searching
https://www.7173mustangs.com/thread-fmx-...ete-report



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
  Reply
Share Thread:  


Possibly Related Threads...
Thread Author Replies Views Last Post
  1973 FMX transmission conversion JULIENHATSWELL 8 203 05-19-2019, 07:50 AM
Last Post: Pegleg
  351c 2v Cam advice ianpala 33 1,162 05-08-2019, 08:05 PM
Last Post: c9zx
  A knucklehead needs carb advice jt.db 15 684 04-19-2019, 01:46 AM
Last Post: jt.db
  C4 Transmission - Missing Kickdown ? Parkka 3 175 04-09-2019, 07:29 PM
Last Post: Hemikiller
  C 6 transmission overhaul John J 7 250 03-24-2019, 12:53 AM
Last Post: John J
  351C 4V / C6 auto trans removal advice needed baz70 33 1,001 02-25-2019, 09:27 AM
Last Post: Bill73Ragtop
  new flexplate advice samckay 2 179 02-03-2019, 07:40 AM
Last Post: boilermaster
  73 302 ro 351w swap now transmission noise samckay 17 690 02-02-2019, 04:10 PM
Last Post: tony-muscle



Users browsing this thread: 1 Guest(s)