Dear mid-60s Buick owners who are also a fan of a certain rascally wagon,
There was one last upgrade needed to get Biquette "finished" at least as far as the drive train was concerned. Biquette had lost her OEM axle in 2010 and it has been replaced by one from a 1964 Pontiac Tempest from a junkyard. Obviously, that axle wasn't going to take the torque of a Buick big-block for much longer, so something had to be done. There are a number of options when it comes to crate axles. There is of course the Chevy 10 bolt and 12 bolt. However, Greg at Orinda Classic Car is a big fan of the Ford 9" crate axle. Such adoration seems like folly since how are you going to fit a Ford axle on to a GM vehicle. Step in Currie Enterprises and their Ford 9" crate axle for 1964-72 GM applications:
https://www.currieenterprises.com/64-72-a-body-crate-rearendsAt first, I wasn't very enthusiastic about this suggestion. After all, a Ford axle on a very proud Buick? I also was displeased that there were only two rear and ratio options on the small side: 3.00:1 or 3.20:1. Since the tires would be bigger, basically I had no choice to go with 3.20:1 which was increasing the engine RPM by 12%.
Still, I did some research and I had to agree with Greg that the Ford 9" had the best reputation. In addition, this poor car has plenty of Chevy parts. Why should I stick Chevy for an axle? So I was eventually convinced.
One downside to the Currie product is that you'd better not be in a hurry to get one. It takes about 3 months to have one fabricated. However, eventually one such axle found it way to Orinda Classic Car:

As you can see, these axles come with your choice of brakes so Biquette has become the first car in the family with 4-wheel disc brakes.
It wasn't too much of a problem to install the axle as can be seen here:

The new axle fit nicely with all the previous suspension upgrades. However, those brakes . . . . . .

Nice and shiny all right. Alas, they required more fluid than the existing master brake cylinder could deliver. So a larger master brake cylinder and a different design of proportioning valve was required. Also, there was a problem getting transmission gears to match the speedometer to the new tires and rear end ratio. However, eventually this was all straightened out. Today, Biquette was finally able to come home on her beautiful new Diamond-back white wall tires. For comparison, here is a photo taken a few weeks back with her 14" rim and old tires:

There was a beautiful sunshine, but you can see now "ordinary" those old tires were. Alas today was a cloudy day, but here is the comparison photo:

You can see how much larger the new tires are. The white-walls are also larger and nicer looking (at least in my opinion.) Here is another angle:

Better still, Biquette's beauty most definitely isn't only skin deep! She is performing much better on just about any parameter you can imagine. With the 3.20:1 rear end ratio, she is accelerating better. However to my amazement, nonetheless she is actually quieter! Moving the engine RPM up seems to put it in a better "sweet spot." She is actually easier to control and the transmission is shifting much more smoothly than at the 2.78:1 rear end ratio. The brakes are performing very well. I had the misfortune of getting stuck in some 1-way traffic caused by some communication cable upgrades. The car sat for 10-15 minutes without a sweat. I'm definitely very pleased! We have some of those digital speed limit signs that report your speed. I checked the speedometer against those and it does look spot on. So at last I can know what my speed is and can finally start tracking gas mileage.
As always there are still a few details to be settled, but at least Biquette is in large measure "finished" at least as far a the drive-train is concerned!
Thanks for your support!

Cheers, Edouard
