273 5 speed conversion to ax15??

[GONEFISHIN']

I’d like to, the plan is to drive the car back home to California and 75mph at 2750 rpm sounds really good.

'66 Barracuda 273-4bbl; A833 non-OD; 225/70R14's on the back; stock rear end; 2700 rpm @70mph

 

[schwinger]

Hears some pics I was able to shoot.
Transmission mount I created.

Side pic of the tranny on drivers and passenger side where the trans hump is at. I detended mine up to clear the tail housing but it’s close

Clutch slave cylinder area as well as the top and passenger side of transmission

Shifter location inside the car. I had a bench seat before but installed bucket seats

The carpet I can’t pull back to get a better pick of the tranny tunnel where the shifter is at but I didn’t cut that area up except for the shifter

 

[schwinger]

Oh I’m running 3.25 gears outback and 26” size talltires, with the OD at 75 mph its at 2500 rpms.

 

[AJ/FormS]

Oh I’m running 3.25 gears outback and 26” size talltires, with the OD at 75 mph its at 2500 rpms.

Mathematically speaking 75 should be :

(75x1056x3.25x.73)/26x3.1416=2300. Mathematically the indicated 2500 is an 8.7% error.....

 

[AJ/FormS]

'66 Barracuda 273-4bbl; A833 non-OD; 225/70R14's on the back; stock rear end; 2700 rpm @70mph

Mathematically, that would be (70x1056)/ 26.4x3.1416x2700=3.03, so probably 2.94s. Mathematically 2.94s would be 2620; that is about a 3% error, well within the math for the tire roll-out and/or speed-O error.

 

[75slant6]

Here’s my shifter in my Duster. For the most part, I like my AX-15 swap, it’s not the smoothest shifting trans by far but still better than a non OD 3 speed. Main thing I wanna change with mine is to go from 3.23 rear gears to 2.76s. 1st gear is nearly useless with 3.23s and 25.5” tires.