Robliepse
Well-Known Member
Im trying to learn more about the rear axle on my car. According to Galen and my broadcast sheet my 1972 GTX came with a D53 Axle ratio of 3.23.1 , D83 size 8.75 Diameter and D91 Sure-Grip and I really think the original rear end is still in the car.
Based on this I have a couple of questions.
How can I tell if this rear end is still in the car?
What does "Sure Grip" mean? What makes it different?
Would 3.23.1 be considered a tall highway gear ratio or a low quick gear?
Last but not least, I've only had this car for about a month and the tires need to be replaced so I've been smoking them up on a regular basis. When I get on it only one of the tires typically spin. Id think with the sure grip that both would lock up. IS there a way to easily check the read end without taking it apart? I kida remember jacking both rear tires off the ground and manually spinning them in different directions which would tell you something.
Thanks for your input
Based on this I have a couple of questions.
How can I tell if this rear end is still in the car?
What does "Sure Grip" mean? What makes it different?
Would 3.23.1 be considered a tall highway gear ratio or a low quick gear?
Last but not least, I've only had this car for about a month and the tires need to be replaced so I've been smoking them up on a regular basis. When I get on it only one of the tires typically spin. Id think with the sure grip that both would lock up. IS there a way to easily check the read end without taking it apart? I kida remember jacking both rear tires off the ground and manually spinning them in different directions which would tell you something.
Thanks for your input