XR6 3 Posted April 13, 2015 Will the P100 diff be ok with a essex lump and type 9 box . I want to know if I need to change the diff ratio to the same as my XR which has a 3.09 ratio . Quote Share this post Link to post Share on other sites
jonsey 0 Posted April 14, 2015 I think standard P 100 is a 4.6 with optional 5.1. That would be screaming at motorway speeds. Quote Share this post Link to post Share on other sites
sheffieldcortinacentre 765 Posted April 14, 2015 for the uk market the Cortina P100 was only avl with 4.44:1 diff with V6 you'll find it still revs high you could do with about a 3.44:1 as a good compromise but don't no if its poss to fit the car diff in P100 caseing. Quote Share this post Link to post Share on other sites
XR6 3 Posted April 14, 2015 Don't want it screaming ! . Going to ask the SA boys what is used on theirs. I probably will go with going on the same lines as my XRs running gear . Providing like Craig said if it will fit a P100 axle casting. Quote Share this post Link to post Share on other sites
Beowulf 87 Posted April 14, 2015 Think of the acceleration though :) Quote Share this post Link to post Share on other sites
Danish 294 Posted April 14, 2015 Think of the acceleration though :) Yup, like my Transit, 0..10 was so quick in first I usually just pulled away in second. Quote Share this post Link to post Share on other sites