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88502 Nov 17th, 04, 11:28 AM I have a 12 bolt that was in my 70ss, It measures 60 1/2" axle flange to axle flange the casting # on the housing is 3894939 the # on the axle tube is KL0222B it has a 4:10 posi gear ,# on the carrier is 3862526 what year is it from Thank you Bill 88502 88502 Nov 17th, 04, 8:51 PM ttt RatONaStick Nov 17th, 04, 9:10 PM according to my book KL is either 66 or 67 chevelle 12 bolt with 4.10s and metallic brakes. there should be a casting date on the center section of the housing. look at the rear cover, where the axle tubes meet the center section you will see some strengthening webs. located on one of these webs you will find a raised casting date. 88502 Nov 19th, 04, 11:47 AM I found what looks like A2_7 the blank could be a 4 or any thing else so I assume it is a 67 housing ,Am I correct? Thank you Bill 1966_L78 Nov 19th, 04, 1:16 PM Bill, If the spring perches are flat steel pads where the springs sit, then its for a 1966 (these used a bolt-on spring retainer)... If the coil spring perches are "inverted cups" that fit up inside the spring (about 1/2") than its a 1967... Tom's 68 Nov 19th, 04, 1:28 PM 88502 did you get your steering column part I shipped it on tuesday 88502 Nov 19th, 04, 3:44 PM not yet ,Also if I owe you for shipping and/or the part let me now how much and thanks again Bill 88502 Nov 19th, 04, 4:06 PM We have inverted cups it must be a 67 unit Thanks guys Bill David Bates Nov 19th, 04, 6:11 PM That casting number on the center section does not look like any 1967 Chevy 12-Bolt number I have seen. The numbers I have are: 3859140 for 1965, 3875745 for 1966, and 3894939 for 1967. The GM 4.10 ring gear should have the p/n 3862526 stamped into it. Pinion is 3862514. Tom's 68 Nov 19th, 04, 7:28 PM they let me send it at no cost and like I said they are littering the place here just glad to see someone could use one no charge don't worry about it always cool just to be able to help | ||