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Author Topic: commo diffs  (Read 6723 times)
lucky13
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« on: December 02, 2008, 10:14:14 PM »
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i want to fit a commo diff in my FE, will need to be shortened ok
any ideas on a width axle/hub face to axle/hub face to fit (hopefully) commo 15x7 std steelies
 under there.Cheers
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FCOV6
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« Reply #1 on: December 02, 2008, 10:26:39 PM »
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I'm in the middle of modifying a VN diff for my FC, if you look on the FB-EK forum under driveline i have been having discussions with a gut who has used a few in various early holdens mostly by using 2 short axles are shortening just 1 side of the housing. I was about to cut my diff when an EK forum member sent me some pics of his EK with a VC comm diff and chaser rims which sit perfectly under the guards.
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MikeM
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« Reply #2 on: December 03, 2008, 12:37:46 AM »
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Not sure exactly what to make it but I know that with mine I asked for it to have the same track as the FC and it is a little too narrow, I am guessing I should have made it at least 20mm wider.  I am sure 100's have done it before so check and meaure it to make sure its right (my 10mm - approx - offset on my rims to counter this causes some issues so I dont use them).
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FC427
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« Reply #3 on: December 03, 2008, 09:30:46 AM »
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For the Commobore diff for my Ute I used the short axle in the long side and then the long axle was cut and resplined for the short Axel and both sides of the housing were shortened...If you take a search you will find this topic has been covered before in more detail ......FC427......
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ofc304
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« Reply #4 on: December 05, 2008, 10:22:10 PM »
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i had a vs slippery done shortened 5'' either side had 60mm lowering blocks made on the housing as spring pads cost $480.00 looks neat
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waynos
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« Reply #5 on: December 06, 2008, 01:41:38 AM »
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if ya going to this trouble, what about a 9 inch?
and,whats a spring pad?lowering blocks are cheaper
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FCOV6
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« Reply #6 on: December 06, 2008, 06:22:29 PM »
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if ya going to this trouble, what about a 9 inch?
and,whats a spring pad?lowering blocks are cheaper

 Spring pads are those flat brackets on the diff that locate the housing on the springs and prevent it from spinning fore/aft.
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ofc304
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« Reply #7 on: December 07, 2008, 10:15:55 AM »
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ya won't get a nine inch set up for $480.00 plus buy the diff for about $200.00
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ofc304
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« Reply #8 on: December 07, 2008, 10:17:19 AM »
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lowering blocks arn't legal are they!!!! Huh
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mcl1959
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« Reply #9 on: December 07, 2008, 12:32:31 PM »
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Yes lowering blocks up to 50mm are legal in all states I think, but I may be wrong - others can correct if this is the case. They are certainly legal in Vic.

Ken
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Glenn 'Stinky' Stankevicius
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« Reply #10 on: December 07, 2008, 08:58:36 PM »
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Legal in SA AFAIK, not sure if there is any height restrictions though.
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waynos
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« Reply #11 on: December 08, 2008, 02:15:58 PM »
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my car was recently engineered with 1 3/4 blocks.he didn't even care about them,glanced at em and then moved on
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