hi i know this has probably been covered before but i am trying to work out what to do first. My 1986 '90' was a 2.5 n/a diesel and now fitted with disco 200tdi, at the moment it is quite good off the mark but flat out at 60mph. the axles are standard 3.54:1 diffs, the transfer box is labelled 1.410. as for the g/box all i can find is casing no. 5OA0184828E. If anyone has any sugestions i would be really gratefull . i may soon have access to a scrap discovery 'k' reg 200tdi for bits etc cheers in advance forgot to add it has 235/85/16 tyres
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