Prior to 1980 3.08 was the common highway gear then after the switch to 727 trans, 2.72 became the "economy" gear. J20s commonly came with 3.73 but had lower gears with the tow package. From: Ken Ames <ameskg@xxxxxxxxx> To: "AMC, Rambler, Nash, Jeep and family" <amc-list@xxxxxxxxxxxx> Subject: Re: [AMC-list] time to find a stout 5 spd tranny Message-ID: <1275446813.4c05c61d697c7@xxxxxxxxxxxxxxxxxxxxxxx> Content-Type: text/plain; charset=ISO-8859-1 Both my 80 J20s (auto, 8400lb GVW) have 3.73s. Ken Quoting Jim Blair <carnuck@xxxxxxxxxxx>: > > 2.72 was stock J10 ratio with 6cyl auto and 4 speed from '80 up. 5speeds got > 3.31 (like my '82 J10 long box) > I have another '76 J10 shortbox with J20 axles and wicked low ratios (4.56 > I think) that will soon be parted to make way for the Honcho I'm fixing _________________________________________________________________ The New Busy is not the old busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_3 _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com