Hi I want to raise the rear end of my 78 T/A...I have gas shocks in the back and that it...any help would be great...or even a link...thanks  

How high do you want to go? They only correct way to go is new leaf springs, the factory used 4-leaf springs on both sides, you can upgrade to 5-leaf springs from most suppliers, go to Eaton Detroit Springs website and check out their listings, they show the different spring rates for the stock, heavy duty and WS6 packages, plus a very HD set, I would call their tech line for assistance picking the right set for your car. Don't fall into the trap of thinking shocks will lift it, they are only designed to control the bounce not support the weight of the car. Also air shocks and shackles are trouble, they will cause wheel hop and poor handling, do it right once and you won't regret it.
Steve  

i have air shocks on my 1981 trans am and i love them you can pump it up with a air compressor or deflate it, i did however have wheel hop but get some traction bars then