When i was inquiring into swaping out my rear for an irs ( i want to auto x), i all the sudden had people pm'in me to trade. i researched it and found out :Originally Posted by DragonXeno
You will find a lot of Cobra owners have switched back to a solid rear axle for this problem, but the road racers like the "better" handleing of the IRS. It all depends on what you like to do. Ford gives us a good starting point and the aftermarket finishes it! Have fun.
you can eliminate most all of the wheel hop and still keep the IRS. You need to change out the soft factory bushings and add a bar to help solidify the IRS. Check out Steeda.com for ideas. There are others too that have products to do this. Maybe Kenny Brown or Griggs? ...
You can find stronger half shafts if you break one.... or do it before, LOL.
I personally LIKE the IRS for the better everyday ride, I never plan on drag launching or power shifting,
you also need to get better subframes the 1's that come from the factory are JUNK
you need some MM full legnth subframes or hans either will work also you need the polyurathan bushings,lowering or stiffer springs,drag radials and for good measure a irs brace which put it all together about 2000 will do it
but then again if you dont do it there are stories AND pics of people breaking the irs on the test drive thats how bad the wheel hop is
also the more mods you do to the car i.e.. horse power mods the more irs work you have to do to keep it from hopping
like mine when i was making 370rwhp(stock) the hop was horrible i put DR on and it was gone then i added a cai,catback and h-pipe and it was back just like before so i had to put lowering springs on and full lenght subframes now its fine again
a live axel is coming VERY soon ive had enuff of the irs im a drag racer and the irs does me no good
on the new cobra's theres suppost to be an option for live axel or irs(thank God)