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86-89 4Runners with Factory 31"s

Old 03-20-2008, 12:39 PM
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86-89 4Runners with Factory 31"s

anyone that has one, what is your stock gear ratio?
Old 03-20-2008, 12:43 PM
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i dont have one and im not 100% positive...but i think it was either 4.30's or 4.56's....are you looking for some third members or somethin..or found a runner?
Old 03-20-2008, 12:46 PM
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4.10 w/ 5speed 22r-e
Wait, do you mean effective gear ratio?

Last edited by '884Runner; 03-20-2008 at 12:48 PM.
Old 03-20-2008, 12:53 PM
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No, with 31's you either have 4.56 for manual tranny or 4.88 for automatic (assuming you have FACTORY 31's, not dealer installed 31's)
Old 03-20-2008, 01:27 PM
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no im curious what the factory trucks came with in their 3rds if they had 31s... tc, thats what i was looking for, but i thought there were some that had 4.10s with 31s, but never thought about dealer 31 trucks.

884R, does your truck show 31s on the sticker in the door jamb even?

Camo, no, im just settling a dispute. I've got more thirds than i know what to do with anyway... same goes for 4runners. I need to get rid of some of both.

A friend and i are trying to relate wheeling 37"s w/ 4.88s to something we've driven before.... closest is a 31" with 4.10s, so then came the logical question, did they have factory trucks with 31s and 4.10s

Last edited by colsoncj; 03-20-2008 at 01:31 PM.
Old 03-20-2008, 02:51 PM
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37's and 4.88's would be closer to 33's and 4.10/4.30's
Old 03-20-2008, 02:55 PM
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There was no first gen that ever came stock with 31" tires.

The ONLY stock gear ratios available in first gen 4Runners were 4.10 (manual trans) or 4.30 (auto trans)
Old 03-20-2008, 03:08 PM
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Originally Posted by Jay351
37's and 4.88's would be closer to 33's and 4.10/4.30's
it should be closer to 31s and 4.10s: (lower number is better)

37/4.88 = 7.58
31/4.10 = 7.56

for reference:

33/4.10 = 8.05
33/4.30 = 7.67

28/4.10 = 6.83 (stock)
33/4.88 = 6.76 (current)
Old 03-20-2008, 03:13 PM
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Originally Posted by DeathCougar
There was no first gen that ever came stock with 31" tires.

The ONLY stock gear ratios available in first gen 4Runners were 4.10 (manual trans) or 4.30 (auto trans)
That's what I was thinking. Mine came with the 225/75s from the factory, and I didn't really catch the FACTORY part until after TC posted. Anyway, like DeathCougar said, they all came with the 4.10s. Sorry about the confusion.
Old 03-20-2008, 03:30 PM
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no problem! so much confusion and muddiness, thats why I was trying to figure it out! Thanks!
Old 03-20-2008, 05:08 PM
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Cory...still have those headlamp bezels? I'm in need of some sensor, too...if you have any.
Old 03-20-2008, 05:56 PM
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Originally Posted by colsoncj
it should be closer to 31s and 4.10s: (lower number is better)

37/4.88 = 7.58
31/4.10 = 7.56

for reference:

33/4.10 = 8.05
33/4.30 = 7.67

28/4.10 = 6.83 (stock)
33/4.88 = 6.76 (current)
I stand corrected.
Old 03-20-2008, 10:21 PM
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Originally Posted by Jay351
I stand corrected.
lol... no biggie.. im an engineer, we're just weird like that!
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