between a XR lower and IMCO lower ????

On a standard length ,does it make any deferents to change over ????

The IMCO was generally 1+ MPH vs XR lower. Howerever, you can likely turn harder with the Merc lower because of the longer skag. This was accurate 3-5 yrs ago, I assume it still is...

So the internal parts are kind of the same ???
Prop shaft and so fort ??

Its just the housing thats deferent.

Imco lower has their own shafts, better than the Merc stuff in some situations. When I build an Imco lower I use the XR propshaft, decent piece. The vertical shaft in the XR is not as good as the Imco, strength wise and tolerance wise.
If you run a 50' boat then the Imco propshaft may have the edge, but I have not tested it..

Hope this helps
Dick

a friend of mine has a 38 scarab,,with XR and he bend the propshaft,,,,,,fixed now,,,but he is thinking to swap out with imco lower.
Thats why i ask ,,,,i think he can safe the money if they are similar.

Todays English Lesson..................

the deferents is.................its spelled DIFFERENCE

Hey.......i used spell check and thats what it did !!!!!

So even that thing does not work .LOL

You must have the kentucky version of spellcheck

HAHAHA,,,,redneck / hillbilly version .

My spellcheck is edgemicated and very smrt !!!!

The parts in the lower of the XR will swap into the Imco lower so long as it is regular length. Short lowers will need the Imco short shaft,, -1, -2.

So how did your buddy bend a 1 1/4" prop shaft.. rotor-tilling at the launch?? Got too close to the concrete?