either the TC or spider gears in the front diff are shot.....im not sure where to start now because i have a limited so its the 242 and i dont have a SYE and im not sure if that is the issue or if its the spider gears.....when i put in 4 wheel i can feel it lock and i get dummy lights but its not a "lock" because as soon as i put it in drive its just zzzzzzzzzzzzzzzzz right away without even giving her throttle, and tho i didnt see it because im operating but my brother swears one of the tires was spinning (we just had a snow storm hence front wheel spin) ....so how could that be ,say if the spider gears teeth were gone theres would be no way a wheel would be turning? I already have planned to swap in the 231 for just 4h and 4l but if the diff is the prob that needs to be fixed first and i dont want to order parts n then its not the problem... and im not sure if the 231 needs the SYE ...if anyone can make ne thing of this...or at least confirm whether im going in the right direction....and i need the 4wheel back in working order before i can move one with the long arm or TC what ever needs attention next.....and every weekend i cant go hit trails or im the lifted jeep stuck in a inch of snow about as useful as a cavalier, i just get more and more frustrated with damn jeep i let one shop work on it and its never been right since then...
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check the linkage to the TC it may need adjustment
sounds like its not engaging in 4x4 all the way

 

X 2 but if you just have to check the diff just put it in 4X4 with the wheals blocked and look underneath. Ifthe shafts are spinning and the jeep goes nowere then you have a problem in the diff for sure.

 

if the linkage needs or was out of adjustment would i feel it in in the shifter and should i have a SYE? .....I have plans to swap in a 231...would it be worth it to just swap it now n save time instead of messing with 242....and when/if swap do i need to grab the linkage off the doner as well or will the 242 work.....