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Old 03-13-2004, 06:26   #9 (permalink)
EFJase
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Join Date: Oct 2002
Location: Perth, WA
Age: 24
Posts: 2,526
Re: Cheap diff upgrades

Rollins car is a manual but aint it?
So a 3.9 in a 4spd would be higher again. Probably closer to 2600-2700rpm.

and for those who dont now;
Divide current rpm at what ever speed, then multiply it by geasr wanted.
ie (using random numbers) 2500rpm/3.08=811.69 811.69x3.7=3003 rpm

I am also inerested in getting a 3.7 diff for my EB, so if u find a cheap way, let me now!
I was told by a guy who goes through a few diffs :) to expect $600 for single spinner gears, drive in drive out. Which isnt toooo bad
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TPC Mod/henchman
previous rides;
1st car EA Fairmont Ghia, extractors, exhaust
2nd EF GLi, 'custom' interior, extractors, exhuast
3rd EA Fairmont 5spd, low'd, extractors, exhuast, head
work, 3.45LSD, EL dash, interior+ El ECU
4th EB2 Fairmont, EL dash and interior, BBM, LSD etc etc
5th EB Fairmont Ghia 5L. All leather, lowered, exhaust etc
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