High Clearance vehicles

Submitted: Wednesday, Jan 18, 2012 at 10:03
ThreadID: 91290 Views:1927 Replies:4 FollowUps:5
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How high is high clearance? Does it refer to a "normal" 4WD or to a 4WD with a lift? My vehicle is supposed to have 225mm clearance, fully loaded I'm not yet sure!
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Reply By: Robin Miller - Wednesday, Jan 18, 2012 at 10:27

Wednesday, Jan 18, 2012 at 10:27
High Clearance refers to normal vehicles basically like your patrols and cruisers
and with 200mm or more of clearance.

Of course in reality its how this translates to approach/ramp over/departures angles as well as the consequences of when something hits.

E.G. In my Patrol its ramp over angle isn't all that good , but once
we crossed a river and it hit a rock on the huge strong steel crossbar
under the gearbox and I got a scratch.

A Prado there at the same time hit the rock on its transfer case and cracked it
and that was there trip end.

Its like tyres - the best reason I have heard for having 33 inch tyres is because most have only 32 inch and they clear the track for you.
Robin Miller

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Reply By: Alloy c/t - Wednesday, Jan 18, 2012 at 11:04

Wednesday, Jan 18, 2012 at 11:04
225mm clearance depends where its measured from , lot of 'roads' out our way are high clearance only at this time of year due to rain/mud , bigger wheel size helps more than 'lift' alone as just changing from a 15" wheel as per early 80series to a 16" wheel raised the 'pumpkin' height a 1/2 inch.
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Follow Up By: pop2jocem - Wednesday, Jan 18, 2012 at 11:45

Wednesday, Jan 18, 2012 at 11:45
I think you will find it's more the tyre outer diameter than the rim diameter. I have two sets of rims and tyres, 15" rims and 16" splits, both are 32" tyre outer diameter.

Cheers
Pop
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Follow Up By: Alloy c/t - Wednesday, Jan 18, 2012 at 12:14

Wednesday, Jan 18, 2012 at 12:14
Pop , think you may find that 1 set of your tyres is a slightly lower profile than the other giving you the 32'' outer diameter on both sets ,, if a tyre is 265/75 /15 and the other is 265/75/16 the 16 gives greater clearance at the lowest point of the vehicle.
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Follow Up By: The Explorer - Wednesday, Jan 18, 2012 at 14:06

Wednesday, Jan 18, 2012 at 14:06
Hi

Yes but I think all Pop was saying is that its the size of the tyre fitted to the rim that needs to be considered not the actual rim size which is all that you referred to in your first post.

Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Alloy c/t - Wednesday, Jan 18, 2012 at 16:01

Wednesday, Jan 18, 2012 at 16:01
Explorer , the point being that a 265/75/16 wheel and tyre is 31.64 inches dia ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, a 265/75/15 wheel and tyre is 30.64 inches dia ,,,,,,therefore the vehicles lowest point [ generally the diff pumpkin for measuring purposes] is raised a 1/2 inch by switching to larger dia wheels with the SAME width and profile tyers.
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Follow Up By: The Explorer - Wednesday, Jan 18, 2012 at 16:50

Wednesday, Jan 18, 2012 at 16:50
Hi

Yes - I am not referring to this fact - I understand and agree with you. Your first post however didnt mention tyre sizes, just rim sizes....and as Pop mentioned the rim size isnt the defining factor.

Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Reply By: Member - Royce- Wednesday, Jan 18, 2012 at 14:11

Wednesday, Jan 18, 2012 at 14:11
Clearance varies between vehicles and which bits hang down.

Get on your back with a tape and check heights for a better idea of yours.

Entry and exit angles also effect clearance.

More importantly [often] is where you place your wheels on a track.
AnswerID: 475310

Reply By: The Bantam - Wednesday, Jan 18, 2012 at 20:59

Wednesday, Jan 18, 2012 at 20:59
If you are talking about "high clearance" as in " high clearance vehicles only", that is just a vague and non descript statemsnt that is saying "don't try this with ya VW GolfGTI.

Lots of older 2wd vehicles would be considered high clearance vehicles.

They just dont want you to get stuck in a modern low slung pasenger car.

cheers
AnswerID: 475362

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