Fat bob's +2" springs have an increased spring rate over stock, so i'm sure towing your boat would be fine. I have the BB spacers and don't really like them. My advice go ahead and get new springs (fat bobs), because i will be replacing my spacers with them soon enough.
You don't have to get new shocks at the same time, you can wait a little bit and let your wallet heal if you are on a budget similar to mine (=college). Definitely get the bilstein 5100's, i got mine through kolak, and they are worth more than what i paid for them IMO.
Hey Thanks. I have to get some extended bumpstops for the rear or ill be using the fenders as bumpstops but other than that I am happy with how it came out. Im going to replace the springs and shocks soon because im sure I have some sag being at 92k miles. Hopefully that helps me out a little. I am going to look into doing the upcountry springs to get the extra 1" as well.
Yes with 2" longer coils, but you problebly should change the coil spring isolators to, then longer shocks, and an adjusteble front Trackbar to center your axle again,,, and longer endlinks for both front and rear swaybars.
Its no other way than a BB to Get a CHEAP lift with Good on and off Road handling.
2004 Grand Cherokee Overland 4.7 HO Quadradrive
95 ZJ Limited 5.2 Winter Project
Sold 94 ZJ Laredo 4.0 Winter Beater
R.I.P. 2000 Grand Cherokee Limited, 4.7 V8, Quadradrive, Shale Green Metallic, Agate/Carbon interior, Well modded and highly missed :(