Changing diff ratio (in frame)

[Terence]

I’ve got it in my head that I want to go to a slightly taller diff ratio, I have a 3.44 at the moment and would like to go to 3.2 or 3.1.
Is it possible to do this without pulling the motor?
I can’t really see being able to change the pinion, but maybe there is a way?

[LarryLebel]

You could install bigger diameter front wheels and tires.

[Terence]

You could install bigger diameter front wheels and tires.

[Polarsilver]

Answer is yes ..i exchanged ratio on my 1071 .. not easy but doable,

[timmy201]

I reckon it’d be quicker and 95% easier to take out the engine

Seeing as you’d need to remove the diff & engine mount on the LH side there’d be very little holding in the engine, which might also make it unstable for removing the pinion gear

[Peter Laidler]

I'd thought about this too Tim. You'd need to keep the box and blocks supported on the jack or suspended. Thinking on my feet, as I do occasionally, if you were doing it in-situ, you'd need to be able to lift and lower slightly to get a bit of movement - and a bit more occasional clearance as the diff is being removed

[Herbert]

Hi Peter,
You wont be able to change the final drive to a 3.1 as the pinion is too big to fit inside the c-clamp. Also there is no way you can take the remote part out without removing the studa. Took engine out and did it that way in the end

[Peter Laidler]

Got that Ronaldino. I was just thinking about the technicalities of taking one out and putting a similar one back with engine basically in-situ. Like you, I'm an engine out and in man. Plus you can do a few more jobs while it's out

[Terence]

Hi Peter,
You wont be able to change the final drive to a 3.1 as the pinion is too big to fit inside the c-clamp. Also there is no way you can take the remote part out without removing the studa. Took engine out and did it that way in the end

Yes, I thought about it a bit more and came to the same conclusion.
Thanks to all that answers, that brought me to my sense’s.