Foxbody driveshaft

I am trying to find out if there is differences between the drive shafts of the v8 and 4 cyl foxbody stangs because im thinking about trying to find one for my mav because im still using the original 170ci drive shaft and i want somthing with a little more strangth.

 

Any suggestions were to find the info??

 

I Googled it and found this:

http://www.fordmuscleforums.com/late-model-efi-techboard/463691-converting-4cyl-fox-5-0-efi.html

 

you must be a better at searching than me i was looking and didn't see that thanks.