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1990 4runner rear diff ratio

Posted: Sun Sep 02, 2012 8:16 pm
by shaunh
was wondering what the standard ratio in my rear diff, wanting to increase the ratio to decrease the revs on the highway
also wondering what diff centre would suit

Re: 1990 4runner rear diff ratio

Posted: Sun Sep 02, 2012 9:33 pm
by old lux
What size tyres? What motor? Auto manual? I got a turbo 2.8 and was running 4.56 with 33s and use to get 100kph at about 2500-2750rpm

Re: 1990 4runner rear diff ratio

Posted: Mon Sep 03, 2012 3:44 pm
by tweak'e
there is a few different ones that came out. i don't know what ozzie got as standard. eg some diesels came out with 29" tires and 4.3 diffs while others where 31" tires and 4.56 diff.
if you think the diffs are stock then find the diff code on the plate on the firewall. there is several lists around on the net that will tell you what ratio it is. just be aware i found one list to be incorrect on some of them.

Re: 1990 4runner rear diff ratio

Posted: Mon Sep 03, 2012 8:20 pm
by shaunh
tyres are 30s, 22r carby, manual.

Re: 1990 4runner rear diff ratio

Posted: Tue Sep 04, 2012 11:21 am
by brad 93hilux
http://downunder4x4.net/forum/showthread.php?t=3167" onclick="window.open(this.href);return false;

Read that