Tire size

[Kylebg94]

Alright so I just had to put 2 tires on my 95 k1500 4x4. The tires were used, I was wondering since because the tires are two different treads. Would it damage the diff?

 

[Caman96]

Tread difference is irrelevant. Tire size would matter.

 

[Kylebg94]

There the exact same size

 

[RichLo]

You'll be fine. But still a good rule to not use 4wd over 45mph anyway.

 

[b454rat]

I had a 4runner that had 20s on it. I didn't like it but it was a lease so wasn't gonna mess with it. It road just the same as the 23 Tacoma I have now, with 265/70/16s. So while I agree with how much rubber meets the road, I still think there is more going on. Front end is over 20+ years old, it's prolly worn out and the bigger rims are exaggerating it..

 

[Erik the Awful]

The tires were used, I was wondering since because the tires are two different treads. Would it damage the diff?

There the exact same size

It depends on how different they are and whether or not you have a G80 rear end. With an open diff all that will happen is that your center section will spin more. Check your glove box RPO codes (if they're readable, neither of mine are). If you have "G80" on that list, you don't want a significant difference in tire height or your gov-loc could engage at the wrong time.

Different brands of tires with the same spec are absolutely different sizes, but usually not enough to matter. I have never heard of someone trashing their diff by having mismatched tires.

Skip to the 3:00 mark where I measure the treads.

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[Kylebg94]

So on my 95 k1500 it should have this code in the glove box location?

 

[Kylebg94]

I see gu6

 

[Kylebg94]

I don't see anything about g80. And everything is readable on mine

 

[Erik the Awful]

Then you have nothing to fear. If your tire sizes are way out of whack your carrier might spin more and put a little more than normal wear on the bearings.