The bolt holes on my pan did not line up and required some grinding to align the oil pan over the timing chain cover and rear main cap,I did contact the seller but their responses seemed like it was my problem, I sent a series of pics that clearly showed the misalignment on two different blocks and their only answer was to return it at my expense and they would look at it. Instead of waiting weeks for them to decide what they might do to make it right, I got out the Dremel tool and fixed it myself. 2) the included oil pump pick up also required cutting and re welding of the tab that bolts it to the pump. My pump of choice was a Melling H55HV this pump uses the exact bolt pattern as a factory pump, but again my pump was the problem. A very long detour to replace a dented pan. This pan can also be found in all the Major catalogs So buyer beware!