owenk Posted November 11, 2002 Share #1 Posted November 11, 2002 I have searched the site for the differential ratio that came on a 71 240 with an automatic transmission. I am planning to remove the auto and install a 5 speed and need to know if should also grab the rear end from the donor.Thanks Link to comment Share on other sites More sharing options...
2ManyZs Posted November 11, 2002 Share #2 Posted November 11, 2002 As far as I know all the automatic equipped cars in the US came with a 3.54:1 rear gear. A bit better than the 3.36 manual transmission ratio but not as good as a 3.90 or 4.11 would be with a 5 speed. Link to comment Share on other sites More sharing options...
Yarb
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