• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
I think i just had the WRONG transmission rebuilt
#1
I have a 73 mach 1 i am nearing completion. I had an FMX laying around from a previous project that i had rebuilt with a shift kit installed.

The trans part number is D2AP. I know that doesnt match my mustang but its a 72 FMX. I just looked on Ebay at other 71-73 FMX's for sale. My tail shaft looks really long compared to the others. I also have the incorrect shift selector on the trans. Someone please tell me what to do. Im going crazy with this thing. lol

[Image: IMAG0705-1.jpg]
  Reply
#2
That's what I found out after cleaning and painting my FMX out of the 69 LTD. Wrong shift lever and tail housing too long. Thankfully I had not rebuilt mine.

The shift lever issue can be fixed without much effort from what I have been told. The tail housing solution I believe is to have a driveshaft cut to length. (I may be wrong - there may be an easier fix. Here's hoping)

Worst case senario - do it all over again. Angry Sorry.
  Reply
#3
I'm far from an expert but shortening a drive shaft isn't that huge of a deal. Some transmission installs require modifying the driveshaft (although I know that a standard 71-73 FMX shouldn't require that). It's kind of a PITA I know, but nothing that you can't work around.

Steve



[Image: 25yvyp3.jpg]
  Reply
#4
Or find the correct short shaft FMX and swap the parts over. That's what I'd do rather than modifying the car any further.
  Reply
#5
I had a local driveshaft shop shorten my driveshaft for me when i put in an 8.8 disc brake rearend and it ran around $100. pretty easy to do and not too expensive.

Kevin

Kevin

1971 Mach 1
408C Stroker
C4 w/3,000 stall
8.8" Rear w/3.73's
Disc brakes all way around.

[Image: 28ivsix.png]




                                                                                             
  Reply
#6
Its not the drive shaft im worried about. Its the shifter selector and the fact that the tranny needs ripped apart. I found a gentleman in Canton Michigan who has the correct tranny with correct selector, tailshaft and partnumbers pulled from 73 Mach1. The price is right and he also has a friend who rebuilds his transmissions for him. If that price is right, im looking to just sell this tranny and have let his friend go ahead with the rebuild. After its all said ans done, i feel that if i drop out this tranny, find and buy the correct selector, pay to have it installed (I won't tear into a tranny) and have the drive shaft shortened, i think i would end up spending more time and money than i would with this deal. THe correct selector goes for about 200 on ebay alone, figure time and labor for installation, then time and labor to shorten the drive shaft......THats just my opinion though. What do you guys think?
  Reply
#7
As a guy with the same delima - I think you are right. You have done the hard work in finding the correct parts. Go for it.
  Reply
#8
Steven Harris;30452 Wrote:As a guy with the same delima - I think you are right. You have done the hard work in finding the correct parts. Go for it.

When you say go for it, you mean just have the correct trans rebuilt insteaad of dealing with frankenstiening the transmission i have?

If so i think im in agreement
  Reply
#9
Sometime you just have that AH S##T moment and have to bite the bullet to recover and move along. I have had several during this build.
  Reply
#10
mikepasquale1;30483 Wrote:
Steven Harris;30452 Wrote:As a guy with the same delima - I think you are right. You have done the hard work in finding the correct parts. Go for it.

When you say go for it, you mean just have the correct trans rebuilt insteaad of dealing with frankenstiening the transmission i have?

If so i think im in agreement

Yes, Have the correct trans rebuilt instead of dealing with modifications. In the future you will be glad you did.
  Reply
Share Thread:  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Steering shaft rag joint alignment.rebuilt the rag joint and installed it wa Doc302 5 158 09-17-2018, 03:52 PM
Last Post: Doc302
  FMX transmission shifter seal replacement how to mach1000 13 4,549 06-21-2018, 03:56 AM
Last Post: summerboy
  Transmission Identification Helicopter 4 279 05-12-2018, 06:37 AM
Last Post: TommyK
Wrench C-6 Transmission Leak 73Mach1Mustang 13 1,928 05-08-2018, 10:44 PM
Last Post: Canted 393
  Transmission Neutral Safety Switch CJ MACH 1 2 421 03-18-2018, 09:36 AM
Last Post: c9zx
  c4 transmission ? nailpounder 3 398 01-16-2018, 06:37 PM
Last Post: nailpounder
  Transmission ?? Nance 11 838 12-05-2017, 08:50 PM
Last Post: TheRktmn
  New gas tank what did i do wrong eventhorizon 4 736 09-03-2017, 02:47 PM
Last Post: Stanglover



Users browsing this thread: 1 Guest(s)