Join Date: Jun 2007
Location: Sydney Australia
2 litre AUTO Lsd
In Australia,the Auto cars= Berlina + Coupe autos had a 14 tooth pinion + a 46 tooth crownwheel witch makes it a 3.2 ratio.These models were 1974-1976 cars.
Installed one in my 2 litre manual car and it is high speed,,low rpm
Its like an extra gear.
Great for long distance crusing + fuel economy.
Just thought I would mention it cause I saw no reference to it in the above posts.
Over the years,I have dismantled many auto diffs for the LSD internals.
Many have said they were a 3.9 ratio,,but when you divide 46 crownwheel teeth by 14 pinion teeth ,you get a 3,2 ratio.
Pull another one apart last week= 46-14.
Customer=also a BB member,purchased a Berlina LSD diff,,believeing it was a 4.3 ratio,which were standard LSDs in all Berlinas that came to Australia.Berlina manuals came standard with a 4.3 LSD Ratio,and Coupes + Spiders with 4.1 LSD ratio.
Pulled it apart and it was a LSD,but from an Auto= 3.2 ratio= 46-14.
So,,add another ratio to the list.= Standard fitment to Australian delivered Auto 2 litres.
There are many Berlinas that have standard 1 wheel screamer diffs,cause maybe I swapped them over the years cause the 4.3 is a great diff for raceing + modified Alfas..
Still enjoying the 3.2 ratio in my GSGT 2 litre.
When you guys are in 4th gear,,im still in 3rd gear.
When you guys are in 5th gear,,im still in 4th gear,,with 1 gear to go.
1972 105 GT Veloce 2000
1976 2L Spider
1984 GTV 6 3 litre
1967 GSGT 2 litre