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| sikford |
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Just thought i'd post up real quick to see what its worth and who to talk to about puttin 3.9 gears in the AU. havnt found anyone close to me that knows much about it all, cheers. Just need a price really and someone around frankston or dandy area that knows there s**t.lol
_________________ THE Fairmont Ghia : 75th Anniversary LE |
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| edfairmont4.0 |
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3.9's or 4.11s have about $1000 for a shop to fit and supply the gears. maybe 1200 if you supply the gears that could take ALOT off they often charge alot for the gears eg $400-500 ebay will get ya some for 100-200 and you'd be unlucky to get some in s**t condition...
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| FordFairmont |
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Posts: 6113 Joined: 8th May 2007 |
Well new gears are around 450... and a new LSD hemisphere is 500
so it all depends how cheap you can pickup a second hand set. I got quoted recently 800-1000 just to upgrade my 3.7 diff to LSD  Cause you need new bearings, plus labour and parts it all adds up
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| sikford |
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the car is already 3:45 LSD just need to find some 3.9 gears and put em in.
_________________ THE Fairmont Ghia : 75th Anniversary LE |
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| FordFairmont |
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Posts: 6113 Joined: 8th May 2007 |
might as well fit new gear set, and new bearings..... after labour im guessing will cost around 1000
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| sikford |
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yeah, sweet. might ask around to see who ppl have used down this way, hopefully i can get them in soon
_________________ THE Fairmont Ghia : 75th Anniversary LE |
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| prydey |
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try some smaller places. the ones where the guy who owns it is the guy who works there. they don't have the overheads that a lot of bigger places do. the downside is they sometimes don't have the same buying power but its worth a try.
i converted my 3.9minispool diff to l.s.d. for $550. used some old bloke who worked by himself. most other larger diff/trans type places wanted around $1000.
_________________ eb v8: low loud and fast. just how a v8 should be. i guess the big question is, is it fast enough... |
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| sikford |
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oh nice, i'll check around
_________________ THE Fairmont Ghia : 75th Anniversary LE |
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| Grimketel |
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for an au with the planned mods of cam exhaust and tune would you reckon 3.7's or 3.9's would be the go?
coz the 3.7s would roughly sit on 2360rpm at 110, but i think if given the beans might still drop back to second when doing o/taking at 100ks... the 3.9s would sit on 2460rpm. whaddaya guys think? 3.7's or 3.9's????
_________________ enough isn't enough |
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| sikford |
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{USERNAME} wrote: for an au with the planned mods of cam exhaust and tune would you reckon 3.7's or 3.9's would be the go?
coz the 3.7s would roughly sit on 2360rpm at 110, but i think if given the beans might still drop back to second when doing o/taking at 100ks... the 3.9s would sit on 2460rpm. whaddaya guys think? 3.7's or 3.9's???? im tryna work out the same thing, not sure if ill get 3.9's or 3.7's now, its s**t me.lol
_________________ THE Fairmont Ghia : 75th Anniversary LE |
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| FordFairmont |
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Posts: 6113 Joined: 8th May 2007 |
if you got an auto, then theres no question...... 4.11's
that will have a similar first gear to an xr6 manual with 3.45 diff apparently |
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| smiley235 |
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get 3.9s. Its fine on the freeway.
_________________ 178.3 rwkw
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| Priestly007 |
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Ive got 3.9s in my KAAZ behind my auto turbo six..... Great investment, cruises nicely along the highway.....
_________________ EF ECTIV |
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| Grimketel |
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{USERNAME} wrote: if you got an auto, then theres no question...... 4.11's
that will have a similar first gear to an xr6 manual with 3.45 diff apparently yeah but your looking at 2600 rpm at 110 km/h, and thats just over my limit of 2500. I wont go any higher than that, so 3.9's are as far as id take it. xr6 mans 1st gear is too short anywhoo... blink and you would miss it.
_________________ enough isn't enough |
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| FordFairmont |
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Posts: 6113 Joined: 8th May 2007 |
{USERNAME} wrote: {USERNAME} wrote: if you got an auto, then theres no question...... 4.11's that will have a similar first gear to an xr6 manual with 3.45 diff apparently yeah but your looking at 2600 rpm at 110 km/h, and thats just over my limit of 2500. yeah that sounds right. but 2600 is nothing, f**k when i do 120kph im sitting on 3000rpm, fuel economy is hardly affected, maybe half a litre per 100km's more fuel.... the car doesnt overheat.... And brings a smile to my face everytime i plant the foot so its well worth it in my opinion |
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