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post #1 of 5 (permalink) Old 01-18-03, 05:31 PM Thread Starter
1 bad 302
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Diff Question

My son was offered a Volvo diff with a 4.1 ratio.
As i'm not that mechanically minded, i have to ask.......

Question: Is this compatible with a BW diff as the centre would suit his XF fitted with EA diff.

Both Volvo and BW are LSD.
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post #2 of 5 (permalink) Old 01-22-03, 04:31 PM
removed as previously discussed!
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i dont think so

a vl commodore diff will fit but, just crown and pinion

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post #3 of 5 (permalink) Old 01-23-03, 01:44 AM
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I have a diff Q as well...whats involved in converting my 3.27 single spinning BW diff in my EBII to LSD pref of the same ratio? How much for the bits and is it something I can do myself?

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post #4 of 5 (permalink) Old 01-23-03, 04:30 PM
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I thought Volvo's ran a Dana diff, the 4.1 ratio is a 4 cylinder ratio. I would have thought the Volvo diff is too narrow for the falcon and have the wrong studpattern. This candle may not be worth lighting. If you want to put 4.1 ratio into your diff try a gear set out of a 4 Cyl TE Cortina, keeping your existing centre.

Lindsay, As for changing the open wheeler centre for LSD shouldn't be too many dollars. Budget around $500.
You keep your existing gears and change the centre. Not usually a job done with the diff still in the car. If you do the hard graft of removing the diff from your car then any competant diff mob can do the change over. Its important that the gear set is aligned properly or else it will be noisey or worse leave you stranded.

Hope this helps the two of you.
post #5 of 5 (permalink) Old 01-23-03, 04:37 PM
Two SC 61's = trouble
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Of interest the Cortina Mk 3 onwards Aust made 4 cyl ratio is 3:45 or around that ratio..Similar to E.L XR's ratio..Bolt sizes varied though...

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