Need help with my IRS

What up guys?
im in the process of REbuilding my 95 Tbirds suspension (stock IRS) because i upgraded to 20's from 18's and im having some issues with the half shafts in the rear.
 
So far ive gotten everything cut and relocated to lay the car out on the 20's with a 255/30 tire.
It BARELY lays out due to my half shafts binding and seems to put alot of stress on them.
The last 1/2" or so before it lays they start to bind pretty good but will allow the suspension to lay with a little force on the jack.
 
As of right now, all control arms are stock but ive got the parts i need in order to build new tubular ones with adjustable 4link ends to help the Neg. camber but with the suspension "layed" and the shafts bound i cannot adjust the camber at all.
 
What can i do? I dont want to tear my axles and tires up when rollin low.
 
 
 

BUMP i need some input guys, its buggin the shit outta me

well my suggestion would be to contact rcv performance they can build any axle you want. can be pricey tho they quoted me 1800 dollars for 2 cv axles with slip joints in them but thats a fully engineered and machined axle.