Quote:
Originally Posted by GreatOldOne
There's a couple of frogs being broken on eBay at the moment - maybe a call to see if they have nothing that's suits?
I know you want it for the different mounting method (koala 'ears') - is there no way you cold modify your existing diff to achieve the same thing?
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Hi GOO
That is a possibility which I have given little thought to, but may prove the least frustrating option. I would have to make my own robust bracket to fit the rear of my standard diff, creating the 'koala' style double fixing: and a second to fix to the chassis.
Edit: exactly as per your very good sketch which I've now just seen - what software are you using to create drawings as good as that?
Its interesting for me to see that you guys have this type of arrangement as standard on the BMW - well you would expect nothing less from BMW would you!?!.
An Ultima diff does have other significant benefits though: it is more robust - the bearings and the crown wheel and pinions are bigger, and also it has a standard LSD. So, all gain - no pain - except I the frustration, and delay in looking for (and never finding?) one.
So, your suggestion probably becomes the easiest option to make happen. It is not a big hardship, as I beleive the standard Sierra diff is OK to 350+HP. And having built my own car, and seen the diff move around when the clutch is let out normally (my chassis stands are very robust, and very useful for checking this type of issue) I am very wary of what racing starts will do!! Ouwch!!
So,watch this space...........
Edit 2:
And there are other advantages of making your suggested bracket fit my diff.
1 I can make it now, before I complete my car.
2 All my current components are known to fit - there is a possibility the Ultima diff could be wider across the flanges? - that would almost certainly be a none starter, if its the case.
3 I can make sure the bracketry fits within the space the Cabrio tank has around the diff, whereas the Ultima koala diff case may foul the tank and require modifications - these would be possible, but preferable to avoid.
So, since you've made me think it through more clearly, a new hybrid 'koala' Sierra set up it should be.........................unless I find an Ultima one before I get it made!
Thanks GOO for the prompt.
Mike