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Old 08-09-2013, 10:12 AM
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20" Terra Grapplers on Overland-- What PSI?

For those with Terra Grapplers on the 20" rims, what PSI are you finding works best on-road? I do a decent amount of highway driving, so I want them to last as long as possible. Sure I could have bought highway tires, but I live in the northeast in the hills and do a little mild off-roading.

Do you follow the factory recommendation of 36psi front & rear?
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Old 08-09-2013, 10:44 AM
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Re: 20" Terra Grapplers on Overland-- What PSI?

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Originally Posted by spinxt View Post
For those with Terra Grapplers on the 20" rims, what PSI are you finding works best on-road? I do a decent amount of highway driving, so I want them to last as long as possible. Sure I could have bought highway tires, but I live in the northeast in the hills and do a little mild off-roading.

Do you follow the factory recommendation of 36psi front & rear?
I will preface this with I have Trail Grapplers which has a more aggressive tread and are on a F150...but I ran mine at 38 psi and that seemed to be the best of both worlds (tread wear and noise)

Only additional thing is on the Ford, over 40 psi it would throw a TPMS light and 4 psi difference between tires would do the same. On a drive over 20 miles the pressure would rise ~2 psi and stabilize so I always ran at 36 psi cold.

All I can really say is to experiment with pressures to find what suits you best.

Hope this helps...(I love the tread and performance too)

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Old 08-10-2013, 07:40 AM
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Mine run between 38 and 40...no complaints with tire noise and they seem to wearing quite well.
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Old 08-12-2013, 03:20 PM
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Re: 20" Terra Grapplers on Overland-- What PSI?

I've had mine for about 2k miles, and I've been running at 36-37.

Haven't felt the need to increase or decrease them since I had them installed.


Not to thread jack - but for those of you who have these tires and go off road, what are you airing down your pressure to?
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Old 08-12-2013, 06:42 PM
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Re: 20" Terra Grapplers on Overland-- What PSI?

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Originally Posted by turbospartan View Post
I've had mine for about 2k miles, and I've been running at 36-37.

Haven't felt the need to increase or decrease them since I had them installed.


Not to thread jack - but for those of you who have these tires and go off road, what are you airing down your pressure to?
That's a good question too
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