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5557mad
04-08-2015, 03:03 PM
how do i measure axles.from what point to what point. also what legenth will i need for a 57 housing. thank you

NCW
04-08-2015, 04:20 PM
What housing?

5557mad
04-08-2015, 04:50 PM
i am using a 57 housing. i did not see a # on it but it dose have the drain plug on the bottom. the center section has a casting # 3707806. cast date 128. it has an O on it about 2 inches up the case from the casting #. i was told that ment it was an early posi section. also where is the best place to buy all the bearings i will need. thank you

Rick_L
04-08-2015, 05:29 PM
Why do you need axle measurements? What are you trying to do?

I think you can find the axle shaft lengths with a thorough search at chevytalk.com.

5557mad
04-08-2015, 05:54 PM
i need to know because i have 8 axles in the garage of different legeth. need to know whitch ones to use

chevynut
04-08-2015, 09:43 PM
http://www.chevytalk.org/fusionbb/showtopic.php?tid/202544/

chevynut
04-08-2015, 09:46 PM
Here's another source...

http://www.southeastchevyparts.com/1955-1957-Chevy-CorvetteBel-Air-Original-Rear-Axle--Restored-_p_173.html

markm
04-09-2015, 07:14 AM
i need to know because i have 8 axles in the garage of different legeth. need to know whitch ones to use

First sort by pressed on bearing, then by 4 3/4 BC, not many rears out there that meet both these requirements.

Bihili
04-09-2015, 08:37 AM
also where is the best place to buy all the bearings i will need. thank you

http://www.tomsdifferentials.com/tomp.htm

Rick_L
04-09-2015, 09:24 AM
Note that in both of Cnut's links they got the posi vs. the non-posi lengths backwards. The posi axles are the shorter of the two.

markm
04-09-2015, 09:50 AM
Note that in both of Cnut's links they got the posi vs. the non-posi lengths backwards. The posi axles are the shorter of the two.

Exactly why I bought a set of Hollander Interchange Manuals, I do not trust internet sources for this kind of info. Another example of wrong info is the Sticky Rear axle Length chart on other site.

markm
04-09-2015, 09:52 AM
http://www.tomsdifferentials.com/tomp.htm

I have had good luck with him and his parts. KA axels are great.

567chevys
04-09-2015, 12:45 PM
Here's another source...

http://www.southeastchevyparts.com/1955-1957-Chevy-CorvetteBel-Air-Original-Rear-Axle--Restored-_p_173.html

24-4/16" look at some of the sizes

Sid

Rick_L
04-09-2015, 07:39 PM
Here is something else if you are sorting through a pile of parts. The 55-56 axle bearings are smaller in diameter than 57 axle bearings. And 57 axle bearings are narrower but the same OD as 58-up bearings.