d21 terrano auto to manual conversion
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- terranoman31
- Hard Yaka
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- Joined: Tue Nov 30, 2010 5:08 pm
- Location: auckland
d21 terrano auto to manual conversion
hey guys was just wondering when i do the chance from manual to auto do i have to change the diff ratios aswell? manual is 4:3 and auto is 4:6
Re: d21 terrano auto to manual conversion
Your going from manual to auto? Why? ill buy the manual conversion parts 
Also, You dont have too change them.

Also, You dont have too change them.
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- Hard Yaka
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Re: d21 terrano auto to manual conversion
Because Terrano manual boxes suck.
Mine sucked so bad I welded the countershaft gear on.
As for the diffs, are you sure about those ratios? I was always on the terms that the Autos and the V6s came with the 4.3:1 ratios and the diesel manuals had the 4.6:1
But to be honest the only problem you will have if you don't change the ratios is that the speedo wont rear right.
Mine sucked so bad I welded the countershaft gear on.
As for the diffs, are you sure about those ratios? I was always on the terms that the Autos and the V6s came with the 4.3:1 ratios and the diesel manuals had the 4.6:1
But to be honest the only problem you will have if you don't change the ratios is that the speedo wont rear right.
Re: d21 terrano auto to manual conversion
This is all news to me. I have only had the pleasure of looking under the bonnet of manuals.
Use the speedo drive that comes with the trans and find out what diffs it was running.
As far as ratios go with manuals, there is no rhyme or reason to it. kinda depends what day they came out of the factory
After looking at a 4.6 and a 4.8 speedo drives, have worked out they may be colour coded.
4.6 was white and 4.8 was red.
Hope this helps a bit.
Cheers,
Simon.
Use the speedo drive that comes with the trans and find out what diffs it was running.
As far as ratios go with manuals, there is no rhyme or reason to it. kinda depends what day they came out of the factory

After looking at a 4.6 and a 4.8 speedo drives, have worked out they may be colour coded.
4.6 was white and 4.8 was red.
Hope this helps a bit.
Cheers,
Simon.
I keep looking for the loose nut behind the wheel, but I can't find it!!
- terranoman31
- Hard Yaka
- Posts: 137
- Joined: Tue Nov 30, 2010 5:08 pm
- Location: auckland
Re: d21 terrano auto to manual conversion
no going from auto to manual v6 good thing is the manual was rebuild before i got it so hopefully it holds up
i have a spare truck here and i think the speedo cable snapped in the auto so will have to change that anyway
so all bits i need to do conversion are speedo cable, hydro setup for clutch, flywheel, clutch, manual box, pedal box, drive shafts? is that all guys? first time doing this

i have a spare truck here and i think the speedo cable snapped in the auto so will have to change that anyway
so all bits i need to do conversion are speedo cable, hydro setup for clutch, flywheel, clutch, manual box, pedal box, drive shafts? is that all guys? first time doing this

Re: d21 terrano auto to manual conversion
Gearbox cross-member, autos are different to manuals
Cheers,

Cheers,
I keep looking for the loose nut behind the wheel, but I can't find it!!
- terranoman31
- Hard Yaka
- Posts: 137
- Joined: Tue Nov 30, 2010 5:08 pm
- Location: auckland
Re: d21 terrano auto to manual conversion
cheers so im all set now just need a hoist lol very heavy bloody things lol
Re: d21 terrano auto to manual conversion
Sketchy_Racer wrote:Because Terrano manual boxes suck.
Mine sucked so bad I welded the countershaft gear on.
As for the diffs, are you sure about those ratios? I was always on the terms that the Autos and the V6s came with the 4.3:1 ratios and the diesel manuals had the 4.6:1
But to be honest the only problem you will have if you don't change the ratios is that the speedo wont rear right.
Autos are pretty shit too, They only last for 200ks then need a $3000 rebuild, also if you tow with them without a big trans cooler they #### out. but yeah they probably are better than the manuals, still by far prefer manual though.
- terranoman31
- Hard Yaka
- Posts: 137
- Joined: Tue Nov 30, 2010 5:08 pm
- Location: auckland
Re: d21 terrano auto to manual conversion
i have a auto for sale if anyone is keen 
