I am working on a 74 dart with my son. Its got a 318 in it for now and we are currently building/stroking a 400 to drop in down the road... the car currently has the stock rearend and I know we will need to find a better choice than whats in her now... I found an 8 3/4 in a 1/2 ton Pickup in the only junk yard within 135 miles of where i live. (rural Montana).. How hard will the rear from the PU be to install? and are there kits to make it a suregrip? I really enjoy tis site and have a ton of useful information here and really appreciate all the knowledge.