as above i have a 96 dccd gearbox and a 2004 gearbox and rear diff what i want to do is change from 4:4 RATIO TO UK 3:5 the problem is that the drop gears are different has anyone done this or have a solution

 

mine is being built as we speak from HCD HDC SUBARU - parts .. breaking .. salvage .. consumables.. mail order

I just asked for a longer fifth and 3rd and 4th to be brought in line and he said yes

 

Are you saying you have a DCCD gearbox with 4.4 diffs front and rear, and have a UK 2004 gearbox that has a 3.9 front, 1.1:1 drops gears and a 3.54 reear diff?

You want to keep the DCCD and use the longer gearing?

If that is correct then swap the centre diff and transfer case over, then rebuild one of your diffs with a 3.9 CWP from a sport, assuming both rear diffs are r160s.

 

yes i have straight cut gears in 4:4 gearbox and want to change gearing to uk gearing but the drop gears are 1:1 in dccd now can i just change rear diff and front diff rear diff is r180

 

Ah I see, then you can't do that since the rear is a 3.54 and the front from the 2004 is a 3.9. - your DCCD is 1:1 so the ratios won't match up. I'm not sure if the front diffs from a 752 and a 754 box are interchangable anyway?

Best give the experts a ring, API, Zen amoungst others