I'm debating between the RC 2.5 spacer and coil lift. Since the original poster seems to have a bit of this debate as well. Why coils over spacers?

 

I copied and pasted this from another thread I posted it on it applies to this tread also.

I just got the 2.5" Teraflex BB with shocks not long ago and love it. The kit is complete and you wont have to buy anything else as with some other kits (rear swaybar links, rear brake line relocation brackets, bumpstops). The ride is about the same.

If you want to go the cheapest route I would recommend the BB and if you ever decide to get a bumper or add weight to the front you can add a 3/4" spacer to compensate for the added weight.

Heres a few of mine


Spacer, shock, and bumpstop.


Rear swaybar link and bumpstop.


Rear brakeline relocation bracket.



Hope this helps.