but on a rebuilt short block w/ 2k since?????????? I realize the difference in engines between 126's and 123's, but my 123's do NOT 'tiptiptiptip' @ all!! '82 TD w/ 211k and '85 w/ 185k. And your 300sd shares that engine! I just am looking to get the engine right even if it needs to be torn apart!..........ARGGGGGGGGGGGGGGGGGGGGG