Author Topic: 9.00 tyres on a Series III FFR?  (Read 149 times)

Offline LRT

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9.00 tyres on a Series III FFR?
« on: August 23, 2017, 10:53:29 AM »
Has anyone successfully put 9.00 or the metric equivalent 255/100R16 tyres on a Series III with extended spring hangers?
1979 Land Rover SIII G.S. FFR 109 ARN: 30-923
1977 Triumph 2500 TC Auto

Offline garrycol

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Re: 9.00 tyres on a Series III FFR?
« Reply #1 on: August 23, 2017, 12:35:05 PM »
I cannot answer your questions - but look at the Series 3 1 tonners and see what setup they had and copy that.

As far as tyres go you need to investigate that very thoroughly - 9.00x16 are basically not available in Aust but can be acquired in the UK.  About the only 255/100R16 tyres are Michelins and cost a fortune around $700-$800 new.  I am using BFG MTs 315/75R16 as an alternative - about the same diameter as the 9.00x16s but much much wider.  There are smaller diameter tyres available - say 285/75R16 but I guess you are looking for the larger diameters.

Getting tyres at a reasonable price is an issue.

Garry

Offline 303Gunner

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Re: 9.00 tyres on a Series III FFR?
« Reply #2 on: August 23, 2017, 01:33:34 PM »
Some of the companies that modify Iveco Daily 4x4 sometimes have new/take off 255/100-16 Michelin tyres listed for around the $300-$400 range.

Offline Diana Alan

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Re: 9.00 tyres on a Series III FFR?
« Reply #3 on: August 24, 2017, 09:49:58 AM »
Land Rover put 9.00 16 tyres on the SIII chassis with extended hangers.  The SIII Australian Army chassis IS a 1 Ton chassis.

The difference between a SIII Au Army and a 1 Ton is that the 1 Ton has a lower ratio steering box than standard Land Rovers and the 1 Ton also have an all helical gear low ratio transmission.  That said many 1 Ton owners have retrofitted the standard ratio boxes because it improves road speed but reduces off road performance.

While the original 1 Ton's had ENV 4.7:1 ratio diffs and the early SIII 1 Ton had Salisbury fronts they subsequently returned to standard Rover front diffs.
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Offline Young Eric

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Re: 9.00 tyres on a Series III FFR?
« Reply #4 on: August 24, 2017, 11:26:30 AM »
you will have to adjust your steering stops on your swivals, otherwise the tyres will hit the chassis.
this will give the land rover a larger turning circle.