Bilstein 4600 or 5100

I've got a stock 2012 Tacoma, do a lot of towing of a camper and the bed just sags way down, and of course I bottom out at times. It is within the weight guidelines. I will be installing some Timbrens and also want to replace the stock 4600 shocks. I've wondered if I can put the 5100 on for a little more support but am not sure if it will fit without any lift kit on my truck. If I do use the 5100, will they fit as easy as the 4600 and will it mess with the front end even if it only raises the back about an inch? Thanks in advance.

 

The 5100s set at 0 will be stock height.