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*Peanutbutter* · 04-01-2018, 11:45 AM

Hi, are you familiar with the bigger HO axles, 11000, 15000 and 17000. I have a 1966 C80 with Napco conversion, looking for 7.20 ring and pinion but still haven't determined which differential I have. Napco used their housing with GM carrier, the carrier is completely round opposed to oval. I think its the 11 or the 15 but not sure, one thing I can tell you is the ring gear is 12 1/4 inchs in dia. Do you need pics to see what I have?

04-01-2018, 11:45 AM	#160
Peanutbutter Account Suspended Join Date: Feb 2013 Location: Mesa, Colorado Posts: 450	Re: Eaton HO72/HO52 vs. 14 Bolt FF Hi, are you familiar with the bigger HO axles, 11000, 15000 and 17000. I have a 1966 C80 with Napco conversion, looking for 7.20 ring and pinion but still haven't determined which differential I have. Napco used their housing with GM carrier, the carrier is completely round opposed to oval. I think its the 11 or the 15 but not sure, one thing I can tell you is the ring gear is 12 1/4 inchs in dia. Do you need pics to see what I have?