Found this very useful when considering which transfer box to use.
http://www.ashcroft-transmissions.co.uk/calc/ratio_calc.html
Decided that on 31 inch tyres a 1.4 defender box will suit me best so going to change the 1.2 as its too high geared, just ordered new seals for the 1.4.
Also discovered that my LT77 is geared much the same as the R380 I'm going to put in
http://www.ashcroft-transmissions.co.uk/calc/ratio_calc.html
Decided that on 31 inch tyres a 1.4 defender box will suit me best so going to change the 1.2 as its too high geared, just ordered new seals for the 1.4.
Also discovered that my LT77 is geared much the same as the R380 I'm going to put in
