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re: If you insatll two new tires instead of four, should they go on front or back?

Posted on 4/5/18 at 7:45 am to
Posted by Tigerpaw123
Louisiana
Member since Mar 2007
17919 posts
Posted on 4/5/18 at 7:45 am to
quote:

f you are replacing the front tires because they're worn, why would you move the worn front tires to the rear


You would not be doing that, you are replacing the 2 front tires because they are worn down more than the back ones, you would keep the less worn down ones on the back
Posted by BestBanker
Member since Nov 2011
19724 posts
Posted on 4/5/18 at 7:49 am to
Obvious solution since your asking is put one on the front and one on the back opposite side. 50/50 survivor ratio. 100% bad ride.
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43031 posts
Posted on 4/5/18 at 7:54 am to
I can't control how good or bad a driver your BIL is. If a blowout is handled properly, there is still a large element of danger. If it isn't, you'll immediately either spin, or go directly off of the road.

Here's an OB thread on this exact thing: LINK
This post was edited on 4/5/18 at 8:05 am
Posted by Chris4x4gill2
North Alabama
Member since Nov 2008
3119 posts
Posted on 4/5/18 at 8:04 am to
better tires go to the back regardless of drive axle
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
88024 posts
Posted on 4/5/18 at 8:35 am to
quote:

I was told to put the 2 new ones on the rear.


That's what you'll find on the web. The problem is, it gets you into an unworkable rotation situation. JMO, but you have to use your judgment based on how much tread is left on the older tires. If they would be fine to rotate, then put the new ones on the front to attempt to even out the wear. If you don't, you'll always be buying two new tires and putting them on the rear.
Posted by bigrob385series
B. Aura
Member since May 2014
2636 posts
Posted on 4/5/18 at 8:37 am to
quote:

the guy at the tire shop told me the new ones should go on the back for traction.
he's right you know...listen to the technician and not the web wrenchers on here.
Posted by eScott
Member since Oct 2008
11376 posts
Posted on 4/5/18 at 8:41 am to
quote:

better tires go to the back regardless of drive axle


This. Walmart lost a lawsuit in court because of this. That's the reason tire companies will put the new tires on the rear of the vehicle.
Posted by GeauxDoc
Highland Road
Member since Sep 2010
2827 posts
Posted on 4/5/18 at 8:47 am to
I'm not a fan of the two tire thing. I'm good about rotating my tires and like replacing all four tires at a time for wear. I know it's not always feasible but it seems like once you get into buying two new tires you will be constantly driving around with two new and two old tires.
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43031 posts
Posted on 4/5/18 at 9:36 am to
I'm guessing most of their studies are done on passenger car tires with less tred depth than truck tires, so you have a valid argument. I just cross mine on the same axle and always keep the new ones on the back. I also have, on average unloaded, 600 more pounds on the driver's side (most behind the A pillar), so it makes a difference
Posted by airfernando
Member since Oct 2015
15248 posts
Posted on 4/5/18 at 10:21 am to
quote:

If you are replacing the front tires because they're worn, why would you move the worn front tires to the rear?


bc tires on the back will last a very very long time.

The OP is a no brainer. You put them on the front. You need good tread on the front or else know you are you to do some hydroplaning.
Posted by Techdog89
Baton Rouge
Member since Dec 2016
1007 posts
Posted on 4/5/18 at 10:36 am to
quote:

Ive always heard to put them on the front for steering control, but the guy at the tire shop told me the new ones should go on the back for traction.


Well, it depends if you're coming in under caution or green flag. Under caution four, not two, duh! But, on green flag definitely two on the outside to help in the corners. NASCAR 1001 baw!
Posted by prplhze2000
Parts Unknown
Member since Jan 2007
58839 posts
Posted on 4/5/18 at 10:40 am to
Right side. That side wears down more quickly so needs new tires more than left side does.
This post was edited on 4/5/18 at 10:42 am
Posted by Placebeaux
Bobby Fischer Fan Club President
Member since Jun 2008
51852 posts
Posted on 4/5/18 at 10:59 am to
quote:

bc tires on the back will last a very very long time.


sHEEEEEEEEET

Posted by firstandtiger
Sulphur, LA
Member since Aug 2013
272 posts
Posted on 4/5/18 at 11:05 am to
New tires always go in the back. It doesn't matter if it's a front wheel drive or not. The weight at the front of the car will hold the lesser tread tires. The back end needs the new tires for better control.
Posted by Tic44
Texarkana, Arkansas
Member since May 2015
2082 posts
Posted on 4/5/18 at 12:40 pm to
completely conflicting answers. I put them on the rear because that's what he suggested, but it goes against what I've always been told.
Posted by Buddy Red
Maringouin, LA
Member since Aug 2007
282 posts
Posted on 4/5/18 at 2:53 pm to
Rear. Dealers/ tire shops have been held liable for putting them on front in the past.

Here is an old video to show the difference

LINK
Posted by brdrone
wanderer
Member since Jul 2016
209 posts
Posted on 4/5/18 at 3:01 pm to
Its really simple. When the rear axle breaks free its harder to self recover. Also usually more expensive, due to higher speeds, so now they tell you to put new tires on rear. FWIW. I blame lawyers, bad drivers and poors. In that order.

I would put new on the front since thats 70%braking/100% steering. Making damn sure my bald rears didnt hydroplane on interstate.


Posted by Obtuse1
Westside Bodymore Yo
Member since Sep 2016
31191 posts
Posted on 4/5/18 at 3:27 pm to
The recommendation to put new tires on the back has been industry-wide (among tire manufacturers) for more than 10 years. The reasoning is the average driver can deal with understeer (loss of grip at the front) better than oversteeer (loss of grip at the back). While most drivers don't even know it simply letting off the throttle increases front grip because weight shifts forward as the car decelerates. This effect is increased when you put on the brakes. So the natural inclination of an average untrained driver (90% of them) is what helps recover from understeer. Oversteer is much more counterintuitive to correct and while many people in the snow/ice belt do it automatically in the snow/ice the speeds are lower and don't require the quick reflexes like it does in rain or dry conditions.

Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 4/5/18 at 3:43 pm to
quote:

The recommendation to put new tires on the back has been industry-wide (among tire manufacturers) for more than 10 years. The reasoning is the average driver can deal with understeer (loss of grip at the front) better than oversteeer (loss of grip at the back). While most drivers don't even know it simply letting off the throttle increases front grip because weight shifts forward as the car decelerates. This effect is increased when you put on the brakes. So the natural inclination of an average untrained driver (90% of them) is what helps recover from understeer. Oversteer is much more counterintuitive to correct and while many people in the snow/ice belt do it automatically in the snow/ice the speeds are lower and don't require the quick reflexes like it does in rain or dry conditions.



Also true in preventing loss of control from hydroplaning, the tires with the best tread need to be on the rear regardless of front or rear wheel drive.
Posted by Obtuse1
Westside Bodymore Yo
Member since Sep 2016
31191 posts
Posted on 4/5/18 at 4:04 pm to
quote:


Also true in preventing loss of control from hydroplaning, the tires with the best tread need to be on the rear regardless of front or rear wheel drive.


Exactly, everything I said is irrelevant to where the driver tires are, a FWD car can understeer just like a RWD car. That said each vehicle will have different characteristics and performance cars will, in general, be more prone to oversteer since they are designed to have more neutral balance, a family sedan will be more prone to understeer. This debate comes up less often today than in the past since more and more vehicles have different sized tires on the front vs the rear.
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