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Old 03-31-2004, 05:51   #1 (permalink)
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Diffs!

Waswondering what u guys think of the 345:1 gear set on the el, Good? shit? and how much r they new and second hand?
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Old 03-31-2004, 06:09   #2 (permalink)
'90 EA-II Fairmont
 
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Re: Diffs!

I've got a 3.45:1 on my EA; best thing about in an EL though is that usually you can get them off wrecked EL XR6/8's and these are LSD (better handling). For costs check your local wreckers but you'd be looking a fortune for brand new... also ring around any local or semi-local differential places.
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Old 03-31-2004, 06:11   #3 (permalink)
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Re: Diffs!

btw my EA is only CFI and can hold with MPI ED's up to about 60km seeing as I usually get a better start; thanks to the diff
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Rosewood EAII Fairmont 02/90. MPFI 3.9L (formerly CFI), 4spd BTR Auto. Skyline geared 3.45g open center 28 spline 4 pinion differential & axles. 2 1/2" Cat Back Exhaust. King Super Low Springs. Sound: Equalization and amplification by Clarion; Head unit by Sony, Front, Rears and Sub by Pioneer. Planned mods - t5, Extractors, Painting Grey Strips and new front and rear bar.
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Old 03-31-2004, 14:51   #4 (permalink)
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Re: Diffs!

what ratio do you have now, if the 3.45 is better than you have this will give you better pickup but you lose a little on top end
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Old 03-31-2004, 16:18   #5 (permalink)
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Re: Diffs!

3.45 LSD: EB onwards on all XR cars (6&8), FPV, GT and other special vehicles.
there is an AU XR8 LSD 3.45 for sale in newcastle (wreckers)

they are a good option for quick starts, however u loose considerable top end speed, but if u r a fast shifter it wont make much of a diff. Good Luck
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Old 03-31-2004, 16:18   #6 (permalink)
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Re: Diffs!

BTW forgot to mention they want 900 bucks for the one from newcastle
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Old 03-31-2004, 18:07   #7 (permalink)
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Re: Diffs!

u wont lose that much on ur top end man its only a 3.45 fair enough u will with a 4.11's but the difference isnt that noticable
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Old 03-31-2004, 18:09   #8 (permalink)
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Re: Diffs!

top end mostly implying speed?

its not really going to matter unless someone wants to loose their licence badly and even then the 3.45 will still easily suffice for that purpose
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Old 03-31-2004, 18:22   #9 (permalink)
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Re: Diffs!

lol true true ... i more menat in that fact you need a tad more rpm to drive at teh same speed, eg driving high way instead of sitting at 1800 in 4th gear u might sit at 2k in 4th gear ...
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Old 03-31-2004, 18:32   #10 (permalink)
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Re: Diffs!

I've got a 3.45 in my Fairmont instead of a 3.08- with manual and auto it works very well- I've had both in it. Terrific for cruising as the standard ratio is too high and the engine is out of the torque band for going up hills- the lower diff is great for overtaking and going up hills- it will power up steep freeway inclines with the cruise on without needing to change down.
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