[goatwrangler]

ill look a little later on tonight but the only diesels i know of that were put in the older medium duty trucks was the DD 8.2 Do you have an Eaton 2 speed rear axle or what ? We need more information. Google Eaton 2 speed rear axle and there was a size i was looking at lastnight that listed the gear ratios. sorry i cant be more help at the moment.