Caseyrhe 650 Report post Posted October 17, 2019 The C6 I got with the 390 came out of a 67 truck. Our course the tailpiece is to long, what options do I have? I’m also going to assume the gearing will be an issue also. Haven’t had any luck finding a used trans around here or at several swap meets. Have checked a few Tranny shops for the shorter tail piece, but no luck. Any recommendations or direction would be greatly appreciated Quote Share this post Link to post Share on other sites
Ridge Runner 1,112 Report post Posted October 17, 2019 If i remember right they do have the long tail shaft ,they used a shorter drive shaft ,i may have the shorter shaft ,if i didnt sell it already 1 Caseyrhe reacted to this Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 17, 2019 Interesting, I’ll measure the one under my Mach to compare to one I have. Quote Share this post Link to post Share on other sites
Vicfreg 771 Report post Posted October 17, 2019 I have a C-6 installed in my '70 Vert. I am looking for some pictures... found one, it looks the same as yours... you can zoom in on the pic.... In the 2n pic, you can see the tailshaft extends to just before my convertible center support plate. I know these are much different than the other floor pans. The C-6 also uses a unique transmission mount, similar, but not identical to the FMX. They are hard to find. I have a couple that are real nice, media blasted, and finish coated. If you need one, will sell it for what I have in it. Did you have the shifter rods? Also, I had a driveshaft made, as the original driveshaft I had was one of those 2 piece ones, and I went to a 9" center section with a Daytona Pinion, which changed my driveshaft length. Quote Share this post Link to post Share on other sites
Vicfreg 771 Report post Posted October 17, 2019 Oh, you will also need the dipstick tube.... Quote Share this post Link to post Share on other sites
barnett468 418 Report post Posted October 17, 2019 you need the correct shift arm which is not reproduced as far as i know so you will need to buy one from another mustang or possibly from a floor shift torino or fairlane etc. Quote Share this post Link to post Share on other sites
unilec 57 Report post Posted October 17, 2019 Not sure if this is of any use to you, but it has a section on the C6 and mentions the 390, so maybe the linkage images will give you some idea of what to look for. https://www.mustang.org.au/technicals/66/7 - automatic transmission.pdf Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 17, 2019 I have the dip tube, have the shift linkage, have the mount (thanks to Ridge). Finally heard back from my trans builder relative who said all C6's are geared the same and will check his stash of parts for a shorter tail piece/shaft. I also read last night, d shaft is close to 4" shorter on a C6 application. one of my fears with the longer tail piece was the d shaft angle, but apparently it wont effect it enough Quote Share this post Link to post Share on other sites
barnett468 418 Report post Posted October 17, 2019 5 hours ago, Caseyrhe said: I have the dip tube, have the shift linkage, have the mount (thanks to Ridge). You have the correct mustang shift lever that is built into the trans? Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 17, 2019 Are you referring to the arm on the ext of the trans that the linkage connect to? Quote Share this post Link to post Share on other sites
jmlay 80 Report post Posted October 17, 2019 Are you looking for a shorter tail shaft housing or the shaft it’s self? I may have a spare c6 that may have the parts you need. Send me a private message and we can workout details. Quote Share this post Link to post Share on other sites
barnett468 418 Report post Posted October 17, 2019 1 hour ago, Caseyrhe said: Are you referring to the arm on the ext of the trans that the linkage connect to? yes. the valve body has to be removed to replace it, and the correct one for a mustang is ultra rare unless they started reproducing them. Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 17, 2019 Well f me. Don’t have that Quote Share this post Link to post Share on other sites
Ridge Runner 1,112 Report post Posted October 17, 2019 Lokar has a bolt on one that is adjustable so the shifter is in sink with the valve body ,i have used them a couple of times ,i used it on my 70 fast back ,it had a 302 and a C6 Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 18, 2019 https://secure.cougarpartscatalog.com/69-70c-6arm.html is this what I need? Quote Share this post Link to post Share on other sites
jmlay 80 Report post Posted October 18, 2019 Yep, that is it. Several vendors sell this part. If you intend on booking up the kick down you will need this also 7A115-69-R, listed on Mansfield link below.: http://mansfieldmustang.com/Transmissionsp2.html https://www.npdlink.com/search/products?search_terms=Shift%2Blever&top_parent=200001&year=1969 Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 18, 2019 Thanks guys, I’ll be able to sleep tonight Quote Share this post Link to post Share on other sites
barnett468 418 Report post Posted October 18, 2019 2 hours ago, Caseyrhe said: Thanks guys, I’ll be able to sleep tonight yes, unless you start to worry about the hole in the case this shaft goes thru that gets ovaled out over the years which can cause it to leak oil... ...are you having fun yet? Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 18, 2019 You know it Quote Share this post Link to post Share on other sites
BigDuke6 17 Report post Posted October 18, 2019 call this place. Jay set me up with everything to rebuild the C6 in my 1969 and he has whatever it is you need. https://www.broaderperformance.com Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted October 19, 2019 Awesome, thanks Quote Share this post Link to post Share on other sites
