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4.11 Diff Ratios

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4:11 was developed to give you same gear ratios as a standard 90 or 110 fitted with 235/85x16 0r 750/16 fitted with a standard transfer box

WHEN using 35' tyres.

So thats your answer....35'

However you can go up a bit, as the it does leave the vehicle with a fairly low top end, 65 to 70mph :(

Hope that clears things up a bit for you :)

Jim :)

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Guest diesel_jim

On my 90 (300Tdi) i used to have 4.1:1 diffs, 1.2:1 transfer box and 35" simex's. it drove almost like stock gearing, if anything, everyso slightly lower (but only a bit)

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i'm running std diffs with 1.4T box and 35s.

therefore although 4.1 were for 35" tyres you could prob go a bit bigger.

depends what you want, large tyres and low engine revs at high speed (therefore need more bhp/Nm to get there) or large tyres for offroading but maintaining a low low speed for winching/decents.

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