Does your mower have a wide roller in the frount of your mowers deck? If so that is probly your problem. This is a anti scalp roller and it may be pressing down the grass. Also check to see that the blades that you put on are installled correctly. On the blades them selfs you will read stampen on the blades This Side Up. Check to see if you may have the middle blade up side down. This will cause a cut difference in your deck. If all the blades are installed correctly than your problem is with the frount anti scalp roller. Check your operators manual for how to adjust the deck. Sure hope this helps. Let me know!
chetsbro1, July 2004