Ive got a 78 CJ5 with 304 v8 and a 3-speed tranny and was wanting to swp it for an auto. I had heard that a 727 was the way to go with little issues, is that correct? I also heard that chevy 350's or 400's can be used but with adapters *** Any Advise?  

I want to do the same swap. I was concerned about drive shaft length after the swap. I think it will be ok as long as your lift isn't over 2.3-3 inches. That way your angles won't be extreme.  

I guess you could slightly alter the tranny mount or skid plate to lower that angle. Do you know if the 727 is longer in length?  

I have a 76 CJ5 with a AMC 360,4" lift, TF727, and dana 20 transfercase. Factory T-150 3-speed was swapped for a th400 with AMC bellhousing, when it started to smoke the torque convertor I decided to swap in a TF instead of rebuilt the 400.
The TF727 is a little shorter over all, I beleive it does better at engine braking also.
From my research it seems that the trick way to set it up to us a tranny with the jeep bellhousing pattern. Then get stock Scout adapter for the tranfer case side, it will have a good index and is considerably shorter than the factory jeep adapter.
I pulled my engine mounts out and redrilled the bolt hole one inch forward of the factory ones. This set the fan into the radiator shroud better than it was to start with, so that was a small bonus.
I also moved my axle back one inch, by moving the axle back on the center pins of the springs. My axle perches had more than one hole to set the pins in. Eventually I will move my spring hangers back and then recenter the axle on the springs. For now that was an easy way to gain some wheelbase.
I have a cv style rear driveline that is short but it seems OK. I haven't had any problems with binding or my angles or such.
In the front you might have to either adjust your bump stops or run a carrier bearing set up. The TF is a very wide tranny, so you will need to plan out the front driveline. With my I lift run a small diameter, thick wall shaft that a full stuff, semms to just barely kiss the tranny pan.
Overall I like the perfomance of the TF over the 400. In stock form it seems to shift down and hold better, with a slight lower first and second gear.
I have a stock torque convertor.
If you go for it good luck and enjoy.


Save your pedal and other extras you remove, some of that stuff is hard to come by nowadays. The clutch pedal arms are all but impossible to find these days.


You might think about a lower gear set, if available, and maybe even a reverse vavle body. All would depend on how you use your jeep.


These are just my thought and opinions, hope they help.