lj78 auto to manual conversion issues...

[lakes_cruiser]

Hi All.

I have an LJ78 with a 3.0 1KZT swapped in. I also changed the auto box to a manual out of an LJ70. All working fine and completed a 3 month trip around Morocco with no issues. However I didn't change the diffs at the time. I knew that the gearing would be low as a result and lived with it! Hey, it was great in the mountains and sand...

But the time has come that I want better cruising speeds and lower revs. Can someone advise me what diffs I should be looking for to swap in?

I would also like to add a locking diff to the rear and thought it would be a good time to do it while changing the diff anyway. Is it with looking for a rear axle with a locking rear diff that also has a better ratio for my setup? Advise please

 

[Jimbo4x4]

I would say your unlikely to find a rear axle with a locker fitted, they're like hens teeth and it's a job finding a runner with one fitted let alone a scrapper. I would look at fitting arb's if you can save up, you can spec the ratios to suit, too.