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As original, non overdrive Series V cars had the 3.89:1 differential and overdrive cars had the 4.22:1. It is possible that whichever is the correct one for your car, it could have been swapped for the other (or even a diff from some other car in the Rootes range), but if so the speedometer would read incorrectly. If it doesn't, then you probably have the correct one, but worth carrying out the check anyway.How do identify the rear end gear ratio in my 67 series V without tearing into it?
The series 5 Alpines that came to the states had 4:22 gears as standard. That includes non over drive cars. This is stated on the many pieces of dealer literature that I have. The mix of the two ratios was used on series 1 thru 4. If you ordered a car you might have been able to get the 3:89.As original, non overdrive Series V cars had the 3.89:1 differential and overdrive cars had the 4.22:1. It is possible that whichever is the correct one for your car, it could have been swapped for the other (or even a diff from some other car in the Rootes range), but if so the speedometer would read incorrectly. If it doesn't, then you probably have the correct one, but worth carrying out the check anyway.
If anyone, I think the dealer would install it. Could one actually order a car...from the UK or the US Rootes importer? I never really thought about it.If you ordered a car you might have been able to get the 3:89.
Tiger Tom had a series 4 GT that was a special ordered car but that was prior to the Chrysler days. Wally Swift said that under Chrysler generic cars came into the states and the master distributor sold them to sub dealers. Options were installed by dealers. It would probably have been expensive to have a dealer install a 3:89.If anyone, I think the dealer would install it. Could one actually order a car...from the UK or the US Rootes importer? I never really thought about it.
Jan
Oh sorry - I didn't know that the US spec was different from the UK spec. Live and learn!The series 5 Alpines that came to the states had 4:22 gears as standard. That includes non over drive cars. This is stated on the many pieces of dealer literature that I have. The mix of the two ratios was used on series 1 thru 4. If you ordered a car you might have been able to get the 3:89.