by DougT » Tue Feb 24, 2015 10:57 am
Using the 4 speed bellhousing requires a bit of engineering.
The bore in the centre of the bellhousiing for the input shaft cover where the cover bolts to the gearbox, is bigger for the 5 speed than for the 4 speed.
Also the syncro rod pokes out in 2nd and 4th gear between and above the two top bellhousing to gearbox bolts. The 5 speed bellhousing has a cup to accept the syncro rod but the 4 speed box does not. The cup needs to be sealed to the gearbox as the oil comes out with the syncro rod and if not sealed you will end up with oil in the bellhousing and possibly on the clutch.
And as others have said, finding a gearstick is almost impossible.
Also I think that you should only use this 5 speed with a petrol engine, diesel engines rev too slowly for the oil to circulate so the laygear bearings wear out quickly. So you should rebuild the gearbox first as the laygear bearings can be very worn and the gearbox falls apart once they wear too much.
Cheers
Doug