Originally posted by johnbull
What's wrong with IRS. It's alluminium and it's made in USA.
We use IRS spool up front and IRS alloy diff outdrives on the rear.
Never had any trouble with either.
I don't like IRS pin cushions, in fact I use Corally Assassin drive shafts with their own blades. They are a virtually straight fit.
Have a look at the attached pic.
I dont want to have to change all those parts to fit the irs ones.
If I could use my existing dogbones I would use them. Those Delrin ones are still lighter than aluminum.