i have the e disco and was wondering if i put a 1.5"bb on the front will i need to adjust the size of the front links?

 

Youi'll be absolutely fine. There is no need to get longer links provided you're not changing the shocks. Even if you are changing the shocks and you stay with something that's less than 2.5 inches longer than stock, you'll be fine.

We're running one Rubi on RC 2.5BB (with shock extensions) with stock links both front and back, and one Rubi on RC 2.5BB rear links moved to front and rear sway bar off. There is no contact on either.

The links tend to hyperextend themselves once you start getting over 2.5 inches in lift. Until then, you're fine.