Going on a junkyard shopping spree. What cars (models) can i look for that carry an 8 3/4 rear that will fit in my 65 barracuda, and is there difference in 904 trannies, and if so which should i look for to put in the barracuda.
8 3/4
- Thread starter JRT
- Start date
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69signetv8
Well-Known Member
Lots of info on both items. Here's a start to get ya going!
http://www.usaimports.co.uk/Mopar_Tech_Pages/mopar_rear_ends.htm
Trans info
http://www.autohobbydigest.com/a-tranny.html
The 65-72 A-bodies were available with the 8-3/4" axle. This was standard on all 340 equipped cars. It was also included in heavy duty packages such as 318 with manual transmission and towing options. It was often included in post 65 273 high performance manual applications.
The bolt circle (BC) on these vehicles was 4". All other Chrysler vehicles (except some Imperials and trucks) of this era were equipped with a 4.5" BC. It is commonly desired by A-body owners to change to the 4.5" BC when upgrading to later style disk brakes or to expand
wheel choice.
A-body 8-3/4" axle shaft swap:
There are several methods to accomplish this. Custom axles such as Strange, Summers, Moser, etc. can be specified with the larger lug pattern for the A-body housing. Longer axles from a larger vehicle may be cut and resplined to fit the shorter A-body axle. Donors for this operation are C-bodies, D-bodies, trucks and vans with the 8-3/4" axle and 4.5" BC. Moser Engineering can perform the cut and respline operation. When selecting a donor axle shaft, look for one that does not taper along its length. Note: A-body 8-3/4" axles were equipped with 10x1-3/4" drum brakes. Replace these with 10x2-1/2" or 11-2-1/2" brakes and associated hardware from the donor vehicle or similar
http://www.usaimports.co.uk/Mopar_Tech_Pages/mopar_rear_ends.htm
Trans info
http://www.autohobbydigest.com/a-tranny.html
The 65-72 A-bodies were available with the 8-3/4" axle. This was standard on all 340 equipped cars. It was also included in heavy duty packages such as 318 with manual transmission and towing options. It was often included in post 65 273 high performance manual applications.
The bolt circle (BC) on these vehicles was 4". All other Chrysler vehicles (except some Imperials and trucks) of this era were equipped with a 4.5" BC. It is commonly desired by A-body owners to change to the 4.5" BC when upgrading to later style disk brakes or to expand
wheel choice.
A-body 8-3/4" axle shaft swap:
There are several methods to accomplish this. Custom axles such as Strange, Summers, Moser, etc. can be specified with the larger lug pattern for the A-body housing. Longer axles from a larger vehicle may be cut and resplined to fit the shorter A-body axle. Donors for this operation are C-bodies, D-bodies, trucks and vans with the 8-3/4" axle and 4.5" BC. Moser Engineering can perform the cut and respline operation. When selecting a donor axle shaft, look for one that does not taper along its length. Note: A-body 8-3/4" axles were equipped with 10x1-3/4" drum brakes. Replace these with 10x2-1/2" or 11-2-1/2" brakes and associated hardware from the donor vehicle or similar
69signetv8
Well-Known Member
Welcome:thumblef:
jahsh
Well-Known Member
Not sure if you need to stick with the small bolt -pattern, but Early B-body (62-70) 8 3/4 aren't much longer and you just need to move the perches in and get the right offset tires. Can be a very cheap alternative to the chance in a million of finding a 8 3/4 A-body rear in a junk yard - or the cost of working with C-body axles.
Some more info:
http://www.autohobbydigest.com/8_75.html
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