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how big of tires can i go without changin gears?

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Old 08-02-2009, 07:16 AM
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how big of tires can i go without changin gears?

ya i just picked myself up an 89 4x4 4cyl and the stock tires r puny, so im wonderin how big i can go without changen the whole gearing?
Old 08-02-2009, 07:27 AM
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depends on how much power you are willing to loose. Bigger tires + stock gears = power loss.
Old 08-02-2009, 07:35 AM
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x2... iv run 33s and stock gears on my old 85.. it wasnt to horrible.. and iv got a friend who ran 37s and stock gears.. now that was horrible... really depends on if you like to pass people or make it up hilly roads at a decent speed
Old 08-02-2009, 07:45 AM
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i just picked up a 90 4 cyl 4x4 and i put 32's on it didnt lose to much power still gets along pretty good even with a bad clutch
Old 08-02-2009, 08:11 AM
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I have an 86 runner with stock gears and 33x12.5s. Its doable for city driving, but I'm gearing to 4.56s asap.
Old 08-02-2009, 08:21 AM
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When I bought my 93 22re 4x4 I immediately threw 33x12.5's on it, I mean before I even drove it around the block.. I noticed it was pretty slow but I figured it was a 4 cyl truck so it wouldn't move fast regardless..

Thing is, I also got 300km to 65L city/highway and couldn't use 5th on the highway without it slowing down considerably.. I blew my motor after a while (hydrolocked..) and put my 27's back on when I got a new motor in, now I get 620km to 65L city/highway and have enough power to tow another truck without it being tragic..

If I were you I'd look at 4.56's and 31's, and 4.88's for 33's.. That'll be my next mod - the gas sucking away as quick as I put it in doesn't make it worth it to me for the extra clearance.
Old 08-02-2009, 08:42 AM
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Originally Posted by Duckie
I have an 86 runner with stock gears and 33x12.5s. Its doable for city driving, but I'm gearing to 4.56s asap.
Yup.
It MIGHT be ok for around town driving but you won't be able to wheel, especially around here in S. AZ. at all.




Fred
Old 08-02-2009, 08:51 AM
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Originally Posted by exist

Thing is, I also got 300km to 65L city/highway and couldn't use 5th on the highway without it slowing down considerably.. I blew my motor after a while (hydrolocked..) and put my 27's back on when I got a new motor in, now I get 620km to 65L city/highway and have enough power to tow another truck without it being tragic..

That would mostly be because the odometer was reading quite a bit SLOWER with the 33's, giving you a lower mileage reading.
Old 08-02-2009, 08:52 AM
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Originally Posted by FredTJ
Yup.
It MIGHT be ok for around town driving but you won't be able to wheel, especially around here in S. AZ. at all.




Fred
What? Around town he won't have any problems at all. He's not going to win any drag races, but it will drive around just fine. Why the hell wouldn't he be able to wheel at all?? That's the most ridiculous thing I've ever heard.
Old 08-02-2009, 09:19 AM
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Originally Posted by Justinlhc
What? Around town he won't have any problems at all. He's not going to win any drag races, but it will drive around just fine. Why the hell wouldn't he be able to wheel at all?? That's the most ridiculous thing I've ever heard.
Never played in the rocks, have you

You need to be able to go slow, crawl, around here and most everywhere else (but especially around here in the rocks) where you really need 4wd.




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Old 08-02-2009, 10:09 AM
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Ummmm....he still has 4lo. You've never driven a truck with stock gears and oversized tires, have you? 4lo is still pretty damn low and perfectly capable of wheeling with 33's on stock gears. It's not going to be so much of a difference that he can't take it off-road. Geez....
Old 08-02-2009, 01:48 PM
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Question i got 33x10.5-15 tires on 8" rims, r stock gears gonna work?

i got a 89 4x4 4cyl. sr5 and i just put some 33x10.5-15 tires on it and i ran her through the mud, worked great, but how much power am i gonna give up on the road?
Old 08-02-2009, 01:56 PM
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a bunch, you are gonna want 4.88's...
Old 08-02-2009, 02:26 PM
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I'm beginning to notice this SAME EXACT question gets asked like 3x a day on here.
Old 08-02-2009, 03:45 PM
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If you are gunna drive on the freeway alot, I'd go with 4.56's. Most of my driving is offroad/in town and it does great! but on the freeway my truck is screaming at me at 65 mph and 3000 rpm I think 4.56's would be perfect for lots of freeway driving because you'd be able to go 70-75 probably at about 2700 rpm which is pretty good!
Old 08-02-2009, 03:46 PM
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Originally Posted by Justinlhc
I'm beginning to notice this SAME EXACT question gets asked like 3x a day on here.
yep


people!!! It's not that hard!
Old 08-02-2009, 03:50 PM
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Cool i got 33x10.5-15 tires for my 89 sr5 do i NEED to change the gears?

yeah i ran the sucker through the mud hole, worked amazing, but im worried about loosing too much power on the road with the stock gears. any advice would be much appreciated!
Old 08-02-2009, 03:51 PM
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double post? You already have a thread with the same question going.
Old 08-02-2009, 03:55 PM
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ya man, i swear i just seen a thread on this from you.... as i mentioned in the other thread.. it depends on your driving habits.... if you Search the fourms you may find that there are lots of threads on this subject.

Last edited by 86Toyrunna; 08-02-2009 at 03:56 PM.
Old 08-02-2009, 04:30 PM
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ya sorry im kinda in a hurry as you can tell cuz ive been looking around for answers, admittedly kinda hard to find. anyway thx for your help.


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