hi all, i have noticed that the tyres on the front of my surf have a bigger diameter than the tyres on the back, will this be ok or could it cause any transmission problems ?
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I'd imagine that a tyre size difference from front to back would give the same results as slightly different diff gear ratios.
I remember when Tony was changing the ratios on the black bullett he could use 4wd because he'd done the back diff but not the front, and enguaging 4wd would result in the rears being driven at a different speed from the fronts.
I'd advise not using 4wd until you find out iff I'm correct, or you have the tyres changed.Gone from 4x4 to 1x2
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Originally posted by newbie2 View Postfronts are 31x10.50r15 and the rears are 215sr15
Should be something like this 215/70/SR15
The middle number generally denotes the tyres diameter in metric terms, which is what may be causing your problem
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Originally posted by newbie2 View Posti thought that was odd to but no there is not.
but roughly the front tyres are about 1-2 inch bigger in diameter and width than the back tyres, could this be a problem ?
I would suggest that you don't use four wheel drive until you get a set of 4 matching tyres on the truck.
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but as im not supposed to use 4wd on my 2nd gen unless on loose or slippery surfaces because of transmission wind up i would have thought that aslong as i stick to that rule that even if i was using different size tyres front and back that i wouldnt get wind up due the wheels spinning on the slippery surfaces i would be driving on.
or am i missing something ?? obviously im just guessing here.
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But you're forcing one set of wheels to travel at a different speed to the other. Effectively either fronts or backs will always be wheel spinning, which will give you no grip and wear the tyres and drivetrain out. Also if suddenly all four tyres find grip you could find yourself with an expensive repair bill.Gone from 4x4 to 1x2
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