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35x12 1/2 on 80 series

Posted: Mon Jun 16, 2008 9:05 am
by solo13
hi i got 35 x 12 1/2 x 15 tyres on my 80 series with standed diffs what diffs should i put in thanks guys

Posted: Mon Jun 16, 2008 9:38 am
by g35me
standard ones.

Posted: Mon Jun 16, 2008 1:21 pm
by DIRTY ROCK STAR
surely standard ones will be fine.
been in 80 standard diffs on 35s no probs.

whether they will clear and hwo your economy will change though??

Posted: Mon Jun 16, 2008 5:36 pm
by jsttry
It will work but reduce your power output at the treads. From memory a 35" tyre changes your overall gearing about 12% so a 4.54 (10%) or 4.88 (16%) ratio would get you back on track.

if you're happy with performance don't bother changing though.

Posted: Mon Jun 16, 2008 7:31 pm
by guzzla
4.56:1

Posted: Tue Jun 17, 2008 1:05 am
by Auto-Craft
4.56:1 for std with 35's

4.88 to one to pick up around 150 rpm more at hwy speed.

I run 4.56 with 37's.

Dont leave them standard, makes the car a pig to drive, and less ecenomical.

Posted: Tue Jun 17, 2008 2:12 pm
by icrawl
im running 37" with 4.88 diffs in my 80 and the speedo is out by 4 kms 104km on speedo im doing 100kms