2.8l gearbox

[mrmunz88]

can you match a 3.1 l manual gearbox to a 2.8 engine or do i have to find a 2.8 one as are proving quite hard to find one?

[geeves]

Only problem is they have different outputs so either change driveshafts or tail shaft section

[mrmunz88]

so if i used a 3.1 gearbox i change the diffs to and that would sort that out?

[geeves]

no need to change diffs. The rear driveshaft on the 2.8 has a spline into the gearbox. The driveshaft on the 3.1 has a flange similar to the diff end of the driveshaft and a spline in the front section.
If you swap the outputs on the gearbox or swap the driveshaft (easier option) then you are fine

[mrmunz88]

sorry if i dont follow you but all i have todo is use the 3.1 driveshaft out of a mu and all will be well with the 3.1 gearbox does every thing line up reguarding the bell housing as i have herd storys that it wont?

[geeves]

not aware of issues. Some people have changed flywheel but that was for the bigger clutch

[isuzurob]

will have to make a new gearbox cross member aswell

[geeves]

This is manual to manual I believe

[stardog]

When I changed engines in the mu from 3.1 to 2.8 I used the 2.8 clutch and fly wheel that was on the donor engine no problems so far.