I took the Futura to Preston Autos and Diffs today to get a price on a 3.45:1 LSD for my Futura. After putting her up on the Hoist, the bloke there told me that my car has a 3.23:1 Diff, which is only one down from a 3.45, and therefore a waste of money to convert to 3.45 because the 3.23 is fairly similar, and not much difference.
He gave me a price of $625 for my 3.23 diff to be converted to an LSD (new cones and bearings all that) plus a nice and subtle Holographic 'Preston Automatics and Differential' sticker for the rear window.
He said that the change up from a 3.23 to a 3.45 wouldnt be that noticable for the jump in price.
He was looking after me I guess, anyone can stooge ya and say go the 3.45! But what do you guys think? I didnt know that there was a 3.23 Diff in between the 3.08 and 3.45! Your thoughts? Should I get the LSD on my 3.23 or should I upgrade to the 3.45? Or will I not notice that much from such a small jump?
Depends. If you are just getting an LS hemi fitted, and they are not removing the pinion, then go that way. If they are pulling the diff down to nothing, and you can upgrade to 3.45 gears for not too much extra, I would go the 3.45.
If you're not driving a manual you're really just steering.
nooo it doesnt rev that HIGH with 3.9's!!!! get 3.9's or 4.11's going from 3.23 to 3.45's is ridiculous and those stickers attract coppa attention i took my off and noticed a big difference in "pulling over" rate lol but i had it there to help out my mates there
1994 White ED Futura Classic, clear front indicators, au2 clear side indicators, 95mm ride height obtained via king springs, camber kit, fairmont velour interior, 5" monster tacho, au2 17" xr8 rims, alpine mp3 deck, pioneer ts-d 6.5" front splits, 8" pioneer rear speakers, 50x4rws pioneer amp, 12" mtx thunder 8000 dvc sub, alpine mono block sub amp, k&n pod filter, 4.11's lsd, jmm dev-5 kit
You should get a quote on how much extra it'd cost to go for the 3.45, and anything shorter for that matter. If going to 3.45 costs only an extra hundred or so than the 3.23, it'd deffintely be worth it. If you're talking a few hundred, then how much can u afford? In the future you may kick yourself for not going for a shorter ratio, especially if you like to do a bit of traffic light racing (up to the speed limit of course). We all have regrets, don't let these be one of yours. If you can afford it, do it!
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