On Alfa number 15
AO Platinum Member
Join Date: Dec 2005
Location: United Kingdom
A Q2 isn't essential.
If you drive hard you however you will notice a benefit to the handling, plus there is a small chance the standard diff will explode and ruin the gearbox casing.
Mine is on 107k on the standard diff. My school of thought says that if it was going to blow it would have already, as it has probably already been driven far harder than I drive. Although others say failure is more likely the older it gets due to wear etc..
I would be tempted to make sure all of the suspension is in order first. Some parts can be powerflexed, but many of the moving parts are rose jointed on the V6 and I would want to keep those. The 2.0 versions use more rubber bushes which can break up.
Also as already mentioned, check when the cambelt was last done.
The V6 doesn't snap the belt as often as the TS cars. The official change interval is 72,000 miles or 5 years. 50,000 miles is probably more realistic and safer for the engine.
You will never be cool driving a Vauxhall.