I would go RC long arm over IRO short arm if I had to choose between those two.
i'd go IRO and add long arms over RC long arm.
Guessing he's doing the 599 RC kit, he'll have to buy new Track bars anyways, so let's say he pays 250 for 2 track bars (a good deal) now he's up to 750 before shipping.
He pays 675 for the IRO kit, adds a full set of CA's all around it's an extra 500 he pays 1100 give or take before shipping.
Or he does a 4.5 short arm kit from RE and pays around 1200 (average price according to what people on here have paid for it) and adds nothing.
It's def more money, I rather go with it this way.
I'm not sure my back spacing which is why I bought spacers. But I'm torn between this lift and the IRO 4.5 inch lift which isn't long arm. The only thing is it dosnt come with an adjustable track bar. And what steering parts are we talking? Also if I were to purchase the IRO lift what else would I need with it?
well throw on the wheels, if it rubs, add spacers, if not don't add them and sell the spacers
the vehicle is 15 years old. Anything and everything that could be wrong, well could be wrong. Only way to find out is to get under there, look for loose or ovaled out holes, see if you get DW when you get the lift on.
I say email kolak (vendor for RE, IRO and others) and see what kind of a deal and advice he gives you.