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Discussion in 'LSx Development and Modification' started by bruzza, Apr 10, 2006.
i still reckon go for 3.73's mate.
I've got the 3.73 in the clubby, getting 3.89 this week fitted.
Whatever you do, there is a central diff place in melbourne do not use them,
-as soon as i got the car back (paid $1500 new gears and LSD rebuilt etc) it would whine starting off and at 70-80KMH.
-was told to let it run in
-still whining so took it back, said he replaced gears but still exactly the same (not sure why he gave it back).
-developed groaning noise from diff when doing corners, called them and was advised it would go away.
-asked again to get whine fixed he said its not the diff its my tires etc (funny i have new tires swapped out anyway), gave me the run around, was not very accomodating so did not bother
-rear diff bearing got noisy, took it back and told them to fix the whine, got the bearing fixed but still whining
-now one of the seals is leaking.
Absolute idiots, i really should dispute this on my credit card but its hard as a shop fitted it and subcontracted the diff out to central diffs.
Anyway, you have been warned.
I'm using someone else now.
So far i tried in commodores, 3.07, 3.73, 3.89, 4.11, i like 3.9s in the autos
3.9's are the best for the auto's and manuals.
Avoid diffs off ebay also!
hey guys, got a 09VE SSv auto s/wagon. first off, want to let u know, Im not educated at all at performance upgrades to cars...(go-karts yes ) anyway, I want to get rid of the factory 2.9diff as personally it is shithouse gearing. Im going to get 3.46 HSV diff, now the workshop where I have been taking it (my intake & tune) quoted me $2500 installed for the HSV 3.46 iff. I have no idea on pricesing for these items. Does this sound about right? I rang a friend who can get me cost price on holden parts and he said the diff will cost me $1600. (add in instalation fee, then its about $200 all up) are they really that expensive? or is there a better diff going around that is better than HSV and im just paying for the name?
$1600 seems on the money for the diff
Holmart are $1550 for the shot peened 3.45 HSV Diff
Installation ? say up to $400 (allow they need to adjust the computer for the new gearing to correct the speedo, if you want to fit it yourself)
Allow $60-70 for decent oil
Another $60 if they want to replace the bolts.
One more expense, in my example you would need another up to $100 for delivery of the diff
$33 in Melbourne
$90 to Qld from Vic :cry:
Just a quick question, I want to get a set of 3.9s for my auto. I have been told by many not to try fitting them myself as its very likely I will get the install slightly wrong and it will whine like a bitch untill it basically dies.. Therefore I would need it to be prof installed and also to be recalibrated due to going to 3.9s
Other then oils, do they really need to rebuild my diff? Everywhere I have asked for quotes they say they will NEED to put in new bearing new this an new that, cheapest I have been told is FROM $1200, thats with me bringing my own 3.9s to the table..
I was expecting more like $400 max for total diff install and recalibration incl oils if I brought my own gears...
any help or thoughts is most appreciated..
Live in Perth btw...
Did you change the diff gears? If so what did you do and has it made it better? I've just inherited a series 1 VYSS auto and was thinking about changing diff gears for better acelleration (don't need to do 240km/h all that often).
hi guys..i realise this thread hasnt been commented on for a while..but i need a little help.
i have a SeriesII LS1 VT, and have been offered a pretty much brand new VP IRS LSD 3.46 diff out of a VP that HAS an Ls1 in it.
will it...or can it be made to fit mine? i know its old and such..but its near on new and professionally built and mines clapped out. (currently running a vs ss lsd i discovered)
being a series 2 vt mate theyre different.
im think they may be able to be modified but not 100% positive..
if i were in your position id be keeping a look out for either a diff from a manual ss, they have 3.46, or hsv manuals are 3.7, might only be in the z series though not entirely sure, but you can pick them up pretty cheap if you keep an eye out
thanks mate i think ur prb right..il keep an eye out!
That seems very expensive, i got my diff rebuilt for $1000 including the 3.46 gears. I got quoted $690 for just the rebuild without gears supplied.
iv been quoted $1,000 supplying my own diff gears but then warranty is not guaranteed or $1,500-$1,700 with the diff place supplying the gears, that was for a full rebuild everything replaced, i asked for trade price and told them where i was from but they may have quoted me retail price.
If you are in Sydney give D&R Diffs a call, ask to speak with Glen Barton. Top bloke and will be cheaper then what you have been quoted.
Just out of curiosity if my WH Series 1 Caprice revs at 2000RPM @ 100KM/H & around 2100RPM @ 110KM/H what would my diff ratio be?
Is it auto or manual?
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