ausmini :: View topic - diff ratios + early gearsets

Hello all,

I have done a search but can't seem to find much on this one. What diff ratios are interchangeable? I know that both pinion and diff gear need to be kept as a pair so will all A series diff ratio's fit into other A series?
And also what about an A+ into A series?

Cheers,
Alex

Wow thats handy to know,
So every diff set will fit every diff.
Does anyone change their diff over when they go for a long highway trip as opposed to usual driving, or is it just way too much work? Anyone got an approximate time frame once you become practiced?
NO, the motor has to come out. Why bother... just fit earplugs like I do. 8)

And going off topic... Are the early gearbox parts interchangeable? In that will the parts from a early 3 synchro box fit into a 850 3 synchro?
Where I am trying to go is I want to keep the pudding stirrer but want better gears

what would anyone suggest looking into?
all the 3 synchro Mini boxes have the same crap ratios except the Cooper and Cooper S. I doubt you would find a Cooper gearset these days.
Fit a 4 synchro remote box, and use your diff housing and shifter. Easy mod.
Just need to check the bearing bores are right size and round, when bolted up. Remove the 2 dowel pins if you have to.
Cheers,
Alex

Where I am trying to go is I want to keep the pudding stirrer but want better gears what would anyone suggest looking into?
all the 3 synchro Mini boxes have the same crap ratios except the Cooper and Cooper S. I doubt you would find a Cooper gearset these days.
Fit a 4 synchro remote box, and use your diff housing and shifter. Easy mod.
Just need to check the bearing bores are right size and round, when bolted up. Remove the 2 dowel pins if you have to.
Cheers,
Alex

huh thats another handy thing to know.
So I will have to get hold of a 4 synchro Mk2 s box :wink:

Are there many of these around? At a guess I would say they are pretty sought after?
Or are the repro parts available?

Apart from Mk2 S and Clubby GT, the 4 synchro remote boxes were used in Mini K, then Clubby 1098. Also in many Mokes and vans, 1968-73. Still are quite common.

Author:	albino235 [ Tue Mar 11, 2008 12:24 pm ]
Post subject:	diff ratios + early gearsets
Hello all, I have done a search but can't seem to find much on this one. What diff ratios are interchangeable? I know that both pinion and diff gear need to be kept as a pair so will all A series diff ratio's fit into other A series? And also what about an A+ into A series? Cheers, Alex

Author:	drmini in aust [ Tue Mar 11, 2008 1:05 pm ]
Post subject:	Re: diff ratios
albino235 wrote: Hello all, I have done a search but can't seem to find much on this one. What diff ratios are interchangeable? I know that both pinion and diff gear need to be kept as a pair so will all A series diff ratio's fit into other A series? And also what about an A+ into A series? Cheers, Alex They all will fit if kept as sets, whether A series or A+.

Author:	albino235 [ Tue Mar 11, 2008 1:13 pm ]
Post subject:
Wow thats handy to know, So every diff set will fit every diff. Does anyone change their diff over when they go for a long highway trip as opposed to usual driving, or is it just way too much work? Anyone got an approximate time frame once you become practiced? And going off topic... Are the early gearbox parts interchangeable? In that will the parts from a early 3 synchro box fit into a 850 3 synchro? Where I am trying to go is I want to keep the pudding stirrer but want better gears what would anyone suggest looking into? Cheers, Alex

Author:	drmini in aust [ Tue Mar 11, 2008 2:06 pm ]
Post subject:
albino235 wrote: Wow thats handy to know, So every diff set will fit every diff. Does anyone change their diff over when they go for a long highway trip as opposed to usual driving, or is it just way too much work? Anyone got an approximate time frame once you become practiced? NO, the motor has to come out. Why bother... just fit earplugs like I do. 8) And going off topic... Are the early gearbox parts interchangeable? In that will the parts from a early 3 synchro box fit into a 850 3 synchro? Where I am trying to go is I want to keep the pudding stirrer but want better gears what would anyone suggest looking into? all the 3 synchro Mini boxes have the same crap ratios except the Cooper and Cooper S. I doubt you would find a Cooper gearset these days. Fit a 4 synchro remote box, and use your diff housing and shifter. Easy mod. Just need to check the bearing bores are right size and round, when bolted up. Remove the 2 dowel pins if you have to. Cheers, Alex

Author:	Wombat [ Tue Mar 11, 2008 2:19 pm ]
Post subject:
albino235 wrote: Where I am trying to go is I want to keep the pudding stirrer but want better gears what would anyone suggest looking into? all the 3 synchro Mini boxes have the same crap ratios except the Cooper and Cooper S. I doubt you would find a Cooper gearset these days. Fit a 4 synchro remote box, and use your diff housing and shifter. Easy mod. Just need to check the bearing bores are right size and round, when bolted up. Remove the 2 dowel pins if you have to. Cheers, Alex Thats exactly what I am doing - 1st attempt with a 3 synchro box was a perfect match but the gears were shot so 2nd attempt with a 4 synchro box is pretty dam near but will need the dowels out

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Author:	albino235 [ Tue Mar 11, 2008 8:06 pm ]
Post subject:
huh thats another handy thing to know. So I will have to get hold of a 4 synchro Mk2 s box Are there many of these around? At a guess I would say they are pretty sought after? Or are the repro parts available?

Author:	drmini in aust [ Tue Mar 11, 2008 8:17 pm ]
Post subject:
albino235 wrote: huh thats another handy thing to know. So I will have to get hold of a 4 synchro Mk2 s box Are there many of these around? At a guess I would say they are pretty sought after? Or are the repro parts available? Apart from Mk2 S and Clubby GT, the 4 synchro remote boxes were used in Mini K, then Clubby 1098. Also in many Mokes and vans, 1968-73. Still are quite common.

Author:	albino235 [ Tue Mar 11, 2008 8:21 pm ]
Post subject:
Quote: Apart from Mk2 S and Clubby GT, the 4 synchro remote boxes were used in Mini K, then Clubby 1098. Also in many Mokes and vans, 1968-73. Still are quite common. And on that note its off to the wanted section I go Thanks for your help, if anyone has anything more to add feel free

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