Can anyone ID this rear diff for me? I want to change the gears and I need to know the correct series. It's currently in my '55 series 2, chevy 3100. I don't know if it's original or not. The 8.2 pictures I've seen appear to be more oval. This one is round. I can't find any reference to a round cover. Could it be from a car? Thanks Jim
Jim
1955 Chevy series 2 6 cylinder, 3 on the tree Short bed, step side
Thanks guys. For those years there was a 55P and a 55T R&P sets. They were 8.2 and 9.375 respectively. The P is evidently passenger car and T is for trucks. Some info said the P was for posi but that's evidently not so.
Armed with that info I have searched the internet for a 9.375 55t ring and pinion set and haven't found anything yet. Anybody know of something available. Randys Worldwide said gears are backordered and won't be in until after January 2022.
TIA Jim
Jim
1955 Chevy series 2 6 cylinder, 3 on the tree Short bed, step side
After hours searching the net, I finally found the 55t 9.375 for my truck. Got it from Justdifferentials.com. Thanks for all the info that helped me find it. Jim
Jim
1955 Chevy series 2 6 cylinder, 3 on the tree Short bed, step side
I have been building rear ends for 60 years and I am thoroughly confused at what you are trying to do. It looks like you have the GM corporate HO33 which was later called the HO35. There were only two gearsets available for these. The GM 3747808 which is a 3.90 and later the 3764960 was available for auto trans at 3.38. I would be interested in seeing what you bought and what you are going to do with it.
This isn't looking good. The order from Justdifferentials is still listed as processing. After getting additional info, I have tried to get the order shelved until I pull out the rear to see exactly what I have. I can't reach them. Called several times. Doesn't allow me to leave a message. After ordering, I checked reviews and looks like their customer service like this is common practice. I know stupid. Do as I say not as I do comes to mind.
As explained in my other post I wanted something little more drivable. Ordered the 3.38 gears. I was assured this was the correct ring and pinion for my truck. And later finding out the '55 55T comes with various carriers. Possibly not the 9.375.
Originally Posted by crenwelge
I have been building rear ends for 60 years and I am thoroughly confused at what you are trying to do. It looks like you have the GM corporate HO33 which was later called the HO35. There were only two gearsets available for these. The GM 3747808 which is a 3.90 and later the 3764960 was available for auto trans at 3.38. I would be interested in seeing what you bought and what you are going to do with it.
Jim
1955 Chevy series 2 6 cylinder, 3 on the tree Short bed, step side
