Ecampi Posted December 31, 2023 Share Posted December 31, 2023 (edited) I recently purchased some cars in various condition, from 98% restored to basket cases. Along with several pallets of parts and two rear ends. One of the rear ends is a model A, the other I haven't been able to identify. Any help would be appreciated. Edited December 31, 2023 by Ecampi (see edit history) 1 Link to comment Share on other sites More sharing options...
pont35cpe Posted December 31, 2023 Share Posted December 31, 2023 Guessing.. `40s-early `50s Buick 2 Link to comment Share on other sites More sharing options...
Ecampi Posted January 1 Author Share Posted January 1 I have a ‘53 Buick Special that was in the group of cars. I just got it up in the air and will check to see if it matches. Thanks. Link to comment Share on other sites More sharing options...
Ecampi Posted January 1 Author Share Posted January 1 I had the back tires off, but I don’t remember if the brake drums were the same. I’ll check next week when I can get back to the shop. Link to comment Share on other sites More sharing options...
pont35cpe Posted January 5 Share Posted January 5 Do you realize the assembly is laying upside down..Buick wheels were mounted with bolts back then. Link to comment Share on other sites More sharing options...
1939_Buick Posted January 5 Share Posted January 5 (edited) On 1/1/2024 at 6:01 AM, pont35cpe said: Guessing.. `40s-early `50s Buick Agree. Is not 1939 Buick Any other GM's of that era use torque tubes? Buick in 1940 went bolted to torque tube to 3rd member pumpkin (as this has). Before was riveted Dampers (shock absorbers) are old style and not telescopic. Diameter and width of brake shoes? If you take the rear cover off should be able to read the part numbers of the crown wheel & pinion. Buick often changed ratio - parts numbers year to year. If Buick and a high ratio has value. Edit. For info https://forums.aaca.org/topic/352354-a-1940-1941-buick-question-regarding-rear-end-gearing/ edit 2. Similar, but different dimensions / gap to brakes from trailing arms. Trailing arms channel orientation not the same https://www.justparts.com.au/parts-for-sale/buick-1940-48-diff-assembly/JPW5100259 https://www.justparts.com.au/parts-for-sale/buick-1940-48-diff-assembly/JPW5100259#&gid=1&pid=2 Edited January 5 by 1939_Buick (see edit history) Link to comment Share on other sites More sharing options...
Bloo Posted January 5 Share Posted January 5 Additionally, you can rule out 1936-37 Buick 80/90, 1936 40, and any earlier Buicks because they are all older "spiral bevel" designs. This one in the pictures is a hypoid design. 1 Link to comment Share on other sites More sharing options...
Ecampi Posted January 5 Author Share Posted January 5 1 hour ago, pont35cpe said: Do you realize the assembly is laying upside down..Buick wheels were mounted with bolts back then. Yes, I know it’s upside down. That was the easiest way to pick it up with the forklift. Link to comment Share on other sites More sharing options...
Ecampi Posted January 5 Author Share Posted January 5 Headed to the shop tomorrow with my grandson. We will check it out and report back. Link to comment Share on other sites More sharing options...
Ecampi Posted January 12 Author Share Posted January 12 Finally had a moment to investigate the bottom of the housing. This is what I found. It either a 60 or 09 with what looks like 4/7 or 4/1. Does any of that make since? 1 Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted January 12 Share Posted January 12 I know not about the 09 , or maybe 60. The 4/1 indicates gear ratio . As 4.1 to 1. Ben 1 Link to comment Share on other sites More sharing options...
1939_Buick Posted January 13 Share Posted January 13 (edited) 60 would indicate series 60 Century 1942 S60 and S40 has 49/12 teeth 4.083 ~4.1. (not all documentation I have is consistent) But could be something else. Part numbers will identify. If you can take the cover off should be able to read the pinion part number and maybe the crown wheel part number Edited January 16 by 1939_Buick (see edit history) 1 Link to comment Share on other sites More sharing options...
Ecampi Posted February 4 Author Share Posted February 4 On 1/1/2024 at 12:35 AM, Ecampi said: I have a ‘53 Buick Special that was in the group of cars. I just got it up in the air and will check to see if it matches. Thanks. Last night before I left the shop I decided to try and see what numbers are on the ‘53. It’s on jack stands because I was checking the breaks. Here are the pictures I was able to get of the under side of the rear end. 89-40 and what looks like a 3 over something that was hit. Then 40 in the second picture. Is there some literature on how these differentials were marked? Link to comment Share on other sites More sharing options...
40 66S CENTURY Posted August 2 Share Posted August 2 SHOCK NUMBER WILL ALSO HELP-2105 A/B ARE ONLY 1940- 2105 C/D ARE 1941 THRU 1953. CLEAN THE TOP COVERS TO REVEAL THE NUMBERS Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now