rear axel ratio for automatic Alpine

[jmthehermit]

Is there any difference in the rear end ratios from an automatic trans Alpine as opposed to one from a 4 speed trans Alpine. I'd rather not take the one I have apart to count teeth. The rear is from a 64 series IV # 9404213. Thanks in advance, Jeff

 

[alpine_64]

The alpine used a 3.89 diff in the auto cars. This is the same ratio as the Non OD cars for SI-II and SIV-V

 

[Wombat]

Jeff

In the sereis IV from B94102641 and all Series V for the North American market only, Rootes changed all diffs to the 4.22:1. Before this the Automatic had the same 3.89:1 as the non overdrive manual.

The one you have should be 3.89:1 providing it hasn't been swapped some time in the last 40 odd years.

Good luck

 

[61Alpine]

I think I have a 4:22 spare laying around. I bought it as part of a package deal about 10 years ago. Has been sitting in the garage since. Email me if you are interested.

***alpine61@comcast.net***

 

[65beam]

rear end ratio

when chrysler changed body style in 1968,the cars with automatic trans went to a 3:70 ratio.they were not the fastest cars getting up to road speed.

 

[jmthehermit]

Thanks for the info guys and offer Rob but I've got a lot of stuff laying around the garage too. I just didn't want to misrepresent the rear in case there was a difference. I've got a complete automatic drive train and other misc parts from an Alpine that was headed to the crusher. With a restoration started space is at a premium. I've got to build a list of what has to go for sale. Jeff

 

[skywords]

Don't forget you automatic guys Von has the shift covers that I made and I think he has 17 of them left. They are a bargain considering the tooling cost and material. $25.00 + shipping.

Rick

 

[Nickodell]

And the front view:

 

[skywords]

And the front view:

No joke: my six year old son Zachary is hounding me to form him a Star Wars storm trooper costume.

Rick