Yes its the valve stem seals.
I replaced mine last summer. Around $1200, but call around.

94Monty


94SR 3.5L(AT)factory rear locker 31/10.5R15 BFG M/T
94LS 3.0L(M)30/9.5R15 Falken Wild Peaks
2003 Limited(AT) BFG A/T