Posted 12/28/2009 08:53 (#989831 - in reply to #989391) Subject: RE: IH 5088
se wi
have a mechanic check the oil pressure on the tranny to make sure the clutch packs are in good shape. the ports are on the left side in front of the cab. at minimum, pull a heavy load up a hill to see if there is slippage from the high side to low. good luck