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#1
02-16-2014, 12:05 PM
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2nd gen axle width
Hello,
Can anybody tell me what the width is from a 72 firebird 8.5 10 bolt axle from the OUTSIDE AXLE FLANGE to the other OUTSIDE AXLE FLANGE. We took the axle apart some time ago and we want to upgrade it with ford large bearings next week but i forgot to measurebit with the axles in. Thanks, Daan |
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#2
02-16-2014, 02:12 PM
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Most GM rears the axle flange is 2.81" past the brake backing plate flange.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#3
02-17-2014, 01:38 AM
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So that would be the casing plus 5.62 for the width?
Can somebody please measure that tombe sure before i start cutting? Thanks, |
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#4
02-17-2014, 03:57 PM
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Yep. Some GMs are 2.75(Wilwood has different kits for each). My second gen were 2.81 when I measured.
If you are welding on ends you can set total length whatever you want but you need to check your brake system and what it's specs are or they won't fit right be they drum or disc.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#5
02-18-2014, 01:38 AM
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I got discs, brackets from ebay and i think c 10 calipers.
Daan |
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#6
02-18-2014, 10:25 AM
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Daan I can go tomorrow to my storage and measure one but you really need to mock up the disc setup up also to see what distance they were made for. As I said Wilwood has two sets of kits depending on the distance.
Axles are I think 30 1/16-30 1/8" plus the width of the posi cross shaft- as they but against it- can get you there also.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#7
02-18-2014, 10:49 AM
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Skip,
Thanks for helping me out, axles are yukon 30 splin 30 1/16 and posi is an eaton lsd 30 spline. I will mock up the brackes but to be sure i want tomknow the exact width so if you are willing to measure the axle tomorrow for me you help me out a lot. Thanks, Daan Holman |
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#8
02-19-2014, 02:19 AM
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From wheel mounting surface to wheel mounting surface, I have measured 61-1/2" on the 2nd gen F-body rears.
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Steve F. |
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#9
02-19-2014, 12:49 PM
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I'll get a measurement today but with the pumpkin hard to get a straight shot. Put the axles in the posi and measure might be a more accurate way.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#10
02-19-2014, 11:39 PM
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61 1/4 drum to drum. Pumpkin not imn the way much measuring drum to drum like it is housing flange to flange.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#11
02-21-2014, 11:23 AM
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Thanks for the info guys.
Daan holman The netherlands |
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