thats your torque converter lockup solenoid freezing....its the same as completely stopping a manual car in gear with the clutch still engaged...
get the jeep scanned by someone with an OBD1 program or scanner...you should find the DTC for the TCC solenoid.
2000 [COLOR=dimgray]Silverstone Metallic[/COLOR] XJ Classic 4x4, 4.0L HO, AW4, just some 29.5" tires, trail lights and recovery points for now.
2005 [color=navy]Midnight Blue Metallic[/color] Pontiac GTO, 6 liters, 6 speeds and 475 horses of fun.
[COLOR=dimgray]B.S.M.C.C.E.P. CLUB Member #24 [/color]