blubu
Apr 2nd, 07, 5:37 PM
Did they make any short rearends in the 12 bolt series that were early production 68. Mine has a number on upper rt side web 0-3-8 is there any other way to ID it?It measures 54 inches from backing plate to backing plate.
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mr Apr 2nd, 07, 9:03 PM Here are the casting numbers I have personally observed over the decades: 12-Bolt Housing: Casting # 1965 Chevelle 3859140N 1966 Chevelle 3875745N 1967 Chevelle 3894939NF 1967 Chevelle-Late 3917124NF 1968-Early 69 Chevelle 3917124NF 1969 Chevelle 3959038NF 1970-72 Chevelle 3969278NF 10-Bolt Housing: Casting # 1964 Chevelle 3839390N 1965 Chevelle 3959139N 1966 Chevelle 3875744N 1967 Chevelle 3894938NF 1968 Chevelle 3917123NF 1969 Chevelle 3859037NF 1970-72 Chevelle 3969277NF http://www.chevelles.com/forums/showthread.php?t=163182 Some 1965-1972 Chevelle 12 bolt Rearend Differences..... The 1968-72 rearend is 1-inch wider overall [each axle is 9/16" longer], than the 1965-67 rearends.. According to: [Chevrolet by the numbers 1965-69]-[Chevrolet by the numbers 1970-75]....... 1968-72 Chevelle [55 1/4"] axle tube flange, to axle tube flange...axle shaft length [30 1/8"].. 1965-67 Chevelle [54 1/4"] axle tube flange, to axle tube flange...axle shaft length [29 9/16"].... Total width 1964-67 chevelle rearend is 60".......Total width 1968-72 chevelle rearend is 61"... ........Axle length on 1964-67 is 29-9/16"...................Axle length on 1968-72 is 30-1/8"..... And the "housing date code"....[L 4 9] = Dec.4,1969 on this particular rearend........ Looks like this.... http://www.thebaycitymotorcompany.com/sites/inventory/Cars/C0000088%201970%20Chevrolet%20Chevelle%20396%20SS/1970%20Chevrolet%20Chevelle%20396%20SS%20(36)%20(C ustom).JPG "Axle codes", Look like these.... http://i9.ebayimg.com/03/i/000/8d/a6/388c_1.JPGhttp://i24.ebayimg.com/03/i/000/94/02/7d58_1.JPG[/QUOTE] Maybe this will, help.............................................. ................................Don. blubu Apr 2nd, 07, 11:53 PM Thank you I been having trouble feeling like a red headed step child getting answers. I know I can ask some stupid questions but I am trying to to do it rite. I think I will leave it in there It has stock corvette 8 inch rallys and 225x70 tires with no problems I had no idea THis was not the short one. I have a another housing which is short I found it in a 69 nova after they welded pads on it for leaf springs It will take some work but It can be fixed Apparently the short ones are very desirable I am sure glad I bought this one for a extra I will have to revise to put it back inthe car not sure what difference it would make? I have not been called out on it yet?? | ||