I have a 2007 L170 with a bad engine (hole in the block) and have a line on a L175 that burned but the block and most of the engine is usable and it would be considerably cheaper than a new block and overhaul. I know the L170 has an N844T and the L175 has an N844LT, what I don't know is what the difference is between the two and if I can put the N844LT in the L170 without too many more changes. Thanks for any info.