" User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) " " Both the 151 and the 258 used the SR4 transmission in 1980 according " to the TSM. The gear ratios, however, are different. " " Gear 4cyl. 6cyl. " 1st 4.07 3.50 " 2nd 2.57 2.21 " 3rd 1.66 1.43 " 4th 1.00 1.00 " R 3.95 3.39 " " This shouldn't be a problem, but the torque rating of the transmission " is usually dependent on the physical diameter of the gear, with a " larger diameter gear (and higher ratio) capable of taking more torque. i've seen it the other way too - limited by output torque, with the higher ratio giving more multiplication and leading to lower input rating. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com