I run the same "Hybrid" Downey/Rancho kit- I ran it on my 88 3.0 and I run the same kit on my 92 3.0, its a great kit if you dont off road aggresivley or run larger than a 31 inch tire (I am not about to start arguing about it)
I have broke it no less than 5 times (shafts- until Downey upgraded those) and one left drive flange now the right one (at flatnasty, Lunyou was a witness to how "easily" it broke) they can take some abuse but seriuosly if you run a larger than 31 with any type of traction adding device (I run a true trac up front) you will break parts.
I put this kit on because of the high travel it has (13" with bilstiens and shock towers) but it is going to the for sale section once I finish gathering all the components for my solid axle swap, FWIW
