This invention provides for a method of modifying and converting an M113A1/A2 into a M113A3 with the use of the M113A3 style powerpack and the M113A1/A2 engine access hole location. The method of conversion utilizes a remote engine oil filter (23) that allows the access hole (18) in the bottom plate to remain unchanged from the M113A1/A2 to the M113A3. The invention uses a remote engine oil filter adapter (22) to accommodate the remote engine oil filter. The invention also uses a remote transmission oil drain adaptor (27) and an engine oil adapter (29) to allow engine oil drainage and transmission fluid service through the access hole.
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