Decoding my 68 charger please help update

[lee]

I am trying to decode my 68 charger can someone please help!!I am trying to find out what it has for a tranny and a rearend
on the build sheet it says 029 for the tranny and a 218 for the axle and the pinion is 27this is under build codes at the bottom of the sheet at the top it says 39 with a 5 under it for the trans  and the axle says 40 with a 1 under it please help  Lee

[lee]

I also have a souped up 440 I am putting in it and I was just curious if anyone can decode the number on the side as well it reads
4006630-440-4  build date 7/15/77

[Hemidog]

your engine block is a  1978 440  RB

[UFO]

39  5 is for a torqueflight automatic transmission.

[hemigeno]

218 for the axle indicates that you have an axle for a 1968 B-body, 2.76:1 ratio, 8-3/4" Standard Axle (open), with 10" rear drums, 1-3/8" pinion and it uses the 7260 U-joints.

[lee]

I got the block out and it says that the block is 3/3/67   with the number on the side 246813010 does any one know about this 383 was it anything special

[John_Kunkel]

Look for the stamped data on the block near the distributor on the 383.

[lee]

218 for the axle indicates that you have an axle for a 1968 B-body, 2.76:1 ratio, 8-3/4" Standard Axle (open), with 10" rear drums, 1-3/8" pinion and it uses the 7260 U-joints.

what size of case would this be a 489 or the other can someone tell my that and also I got the engine in I certainly need posi thats why I need to know what case thanks Lee

[lee]

what size would the casing be 489 or the other one