Swapping Final Drive In Gearbox

[craig_007 1]

I have a 1900 gearbox (BE3) that I need to fit to my track car.I destroyed the 1600 box that was in it

 

Before I fit it I want to change to a 4.4/4.8 final drive,Is this just a case of swapping the crown wheel on the diff or is it a full scale operation.

 

If it's a pig of a job I might just look for an MI16 box as the 1900 final drive is too long for track work for me.

[alync406 4]

The crown wheel and pinion have to be replaced,and always have to be swaped as a pair.To fit the pinion the whole box has to be stripped as it is part of the shaft.It is not too bad a job stripping a BE box.There might be a guide somewhere.

[Ryan 99]

Here: http://www.rallyparts.co.uk/cwp_change/