diff ratio

[gearbox90]

I`m sorry to ask and suspect it has been asked before but i did do a search and couldnt find what i wanted. What is the lowest diff ratio fitted to the f10/f13 gearbox and what was it fitted to? Also eveyone says to use the f13 cr gear cluster,there are a few on ebay atm, but he states the second gear ratio but has 2 different ones, are they both close ratio and which is best? Thanks in advance for and help that van be given.:)

[garyc]

3.55 - 4.53 is the range of diffs? When you ask for best, what do you want it best for?

[gearbox90]

ah ye sorry that would of helped a little . I wont the lowest diff available as standard so that would be the 4.53, next question is what was that fitted to and any idea where to get one from. As for the gearbox it will be fitted to a 1300 road rally car , so the closest ratio, dont matter about top speed at all.

[garyc]

Something like a combo van, not sure which model.

I have a2.14 cluster here if you needs one (that's the 2nd gear)

[gearbox90]

Thank you for the info mate,will have too keep an eye out for a combi. A bit early for a box atm mate the car needs abit of work first. I have to remove my nova sport 40's set up for the reg's and make up a new carb set up :(

[garyc]

I'd go for twin SU's.

[gearbox90]

mmm, maybe, tbh i dont like twin su`s , not even on a mini, my brothers into his mini`s and we run that on a single 45. Can i ask why would you run twin su`s? I was thinking either a 32 dcd webber carb off a v6 ford, or try and sort a single 44 idf.But i`m open to suggestions if you know of something better.