has anyone ever fitted the diffs from a 2.0 xr4x4 into their 4wd saff or escos to take advantage of the 3.92 diff ratios?

is it just a staright swap ?


any info appreciated guys

 

up for the sat night crew

 

Yep straight swap James, sold some to a guy a while back that came off a ghia estate I had for the exact conversion. I have heard that they are not a strong as cossie diffs but cannot see why as they are limited slippers on the rear and normal open on the front same as a cos, just a different teeth count

 

cheers paul ,appreciate that mate

 

same fitment as the cossie, just a different ratio, 3.92:1 instead of 3.62:1 so you get better launching off the line and acceleration at the expense of top end

 

Dojj is the 3.9 better on the mt75 box though ?

 

cheers dojj ,

i have just got a xr4x4 that will be broke [rotten]so info appreciated

 

Interesting, I know off a C reg xr4x4 due to be broken

 

Be careful it's must be the 2.0 xr4x4 not the v6
I have a 3.9 rear in my race car with drop gears in the box using a standard 3.6 front diff as the 3.9 front diff is known to be weak when putting medium to big power through it, due to the physical size of the teeth which are small to squeeze more in!

Steve

 

As above, some of these are the same ratio as standard cos ones, so make sure you get the right one.

 

The box will give up before the diffs jay

But as ever, abuse will kill everything

You do feel the effects of the different ratios but it just means that you can get into the power quicker

In the real world I had at least twice the power with 362 diffs in my estate but the 392 CSR was only fractionally slower round the twisties, 3 or 4 mph isn't an awful lot when you are hanging it off the limiter in 2nd

 

And these riffs only came on the 2.0 dohc 4x4 sierra and the 2.8 front diff won't fit the cossie sump properly as they have a different casting