bushwacker flares

I currently have a 3" skyjacker lift on my 1993 jeep cherokee sport 4dr. I am currently running 31 x 11.50 r16 swamper LTB's. If I buy those bushwacker fender flare cut outs will that give me enough room to run 34 x 10.50 r16 LTB's. The only reason I am thinking these will work is because I've noticed all super swampers are acutally an inch smaller than they say they are. I've already measured 34" swampers to be 33's and measured my 31's to be only 30's. Those measurements are from new tires. I've been looking for a second opinion on this for a while and was hoping someone could help.

I currently have a 3" skyjacker lift on my 1993 jeep cherokee sport 4dr. I am currently running 31 x 11.50 r16 swamper LTB's. If I buy those bushwacker fender flare cut outs will that give me enough room to run 34 x 10.50 r16 LTB's. The only reason I am thinking these will work is because I've noticed all super swampers are acutally an inch smaller than they say they are. I've already measured 34" swampers to be 33's and measured my 31's to be only 30's. Those measurements are from new tires. I've been looking for a second opinion on this for a while and was hoping someone could help.
it will be close are you going to cut your fenders first?

Yeah the fender flare instructions cut off about 2" on the outside of the wells. The 34" tires will fit with 3.25" to 3.75" of backspacing (which means new rims because stock cherokee rims have 5.25" of back spacing). Next I will need to add additional bumpstop to help keep the tires away from the flares at full compression. The only thing left is chrome rims or painted. I'm thinking chrome though.

Yeah the fender flare instructions cut off about 2" on the outside of the wells. The 34" tires will fit with 3.25" to 3.75" of backspacing (which means new rims because stock cherokee rims have 5.25" of back spacing). Next I will need to add additional bumpstop to help keep the tires away from the flares at full compression. The only thing left is chrome rims or painted. I'm thinking chrome though.
what color is your jeep?

3" and 34's even with the bushwhackers is gonna be a tight fit. Especially, since you are dropping to lower backspacing. Those 34's will likely hit the control arms, and you wont have a whole hell of a lot of uptravel.
However, this doesnt look to be of concern for you, as I assume youre building more of a pavement pounder.