So got my shocks delivered this week, and got the two rear shock on just fine! So Gen 2 rear OE shocks fit on Gen 1 just fine, although you will notice in my pics that they sent me 2 pass rear shocks. This doesn't hurt anything, just hides the fox stickers on the one side. I didn't even have to lift the truck, just used ratchet straps to compress the shocks and all better. I still have to try the fronts, I'm a bit scared so far but this is good news for all of us 1st gen guys looking to save some money buying the gen 2 or shocks. This was $1400 for all 4 shocks, brand new, from Athens ford on EBay! Already saved money just on the tears!