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Replace GU8 with a GU7?

Thinking of uprgading to a disc brake lsd diff in my 202 powered VC.

The car originally had a 4cyl starfire engine and it's still running a GU8 (3:90) diff.

Will a GU7 (2:78) salisbury from 308 VH bolt straight in?

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I recently swapped from 3.9 to 3.55. The 179 loved the 3.9... the new 202 didn't, so fitted the original 3.55 back in. 5 speed box. If yours is auto 2.78 might be ok, but if the engine is cammed it may be too high. I tried 3.36 and 3.08 years ago... economy got worse and too slow off the mark. My cammed 179 prefered the lower diff, and got 23mpg, but less than 17 with the 3.08.

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They don't make em like they used too!

the diff will bolt in the issue will be joining the v8 diff to the 6 cylinder. No idea how well it'll work with that ratio.

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Whats wrong with Melbourne drug addicts sleeping all over the footpath trying to scab money?

I think 3.08 is the go if you want a good all round ratio

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You've been stitched!😉

Email me
HOLDEN DOCTOR

forgot to mention i'm building a straight gas turbo 202 (blue bottom with black efi head) for the car.
currently a manual but open to putting in an auto.

looking for a ratio between 2.7 - 2.9 as this should build up boost in first gear and give me enough time to use it :P

anyone know how to connect the v8 diff to the 6cyl tailshaft?

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get the front piece of a v8 shaft shortened

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Whats wrong with Melbourne drug addicts sleeping all over the footpath trying to scab money?

Excellent! I'll look into doing that.

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