rear end

[Mayhem_J30]

have any 240 owners done this:http://courtesyparts.com/Merch...00004

i'm thinking of putting in a different final drive ratio on the J and since they seem to easily swap out between the J and 240 hopefully I could install this. looks like i would need a new speedo to to compensate for the gearing change.Advice?Words of wisdom?oh yeah,i don't care about gase mileage.

[redrocket]

I'm thinking about changing to those gears myself the gas mileage would be ****ty but you would have a hell of a start and yes it will need a new speedo gear

You might want to look at the 4.63 its cheaper by like 30 bucks

[AZhitman]

You can get the 4.08 complete (bolt-in) for less $$$. This looks like it's just the gears... Building a rearend is quite a job (far from a DIY). Hard to get it just right.

I must agree, the ratio would be quite nice!

[Mayhem_J30]

I'm thinking about changing to those gears myself the gas mileage would be ****ty but you would have a hell of a start and yes it will need a new speedo gear

You might want to look at the 4.63 its cheaper by like 30 bucks

4.63! that might be too much of a good thing. i think the 4..36 will be just right. but if it all fits i'll do it. those things sure are expensive for what they are. I hope courtesy nissan is cool with return if it doesn't work!

[S14Zilvia]

4.10 or so?

I know swapping an n/a diff into a 300zx tt will do some damage

[Mayhem_J30]

NA Z is 4.08 and TT is 3.69.

[S14Zilvia]

NA Z is 4.08 and TT is 3.69.

I know. I owned a TT.

I was asking for the stock 240 ratio

[float_6969]

it's the same as the NA 300zx. 4.083.

[Mayhem_J30]

awesome! i just asked courtesy if they knew what other parts i'll need besides a speedo and gears..the guy said "I have no idea you'll have to tell us that." hahahaha, you gotta love salesmen. They sale stuff but have no idea what it even is.

[sultan]

you probably confused him because you have an infiniti. that place is pretty cool, though. it's not like a normal parts desk at a dealer, it's more like a parts store. they charge less on the internet than in person, i paid an extra 2 bucks for a 300zxTT radiator cap. they also have a 300zxTT long block for sale that you can look at while you're waiting.

[Mayhem_J30]

you probably confused him because you have an infiniti. that place is pretty cool, though. it's not like a normal parts desk at a dealer, it's more like a parts store. they charge less on the internet than in person, i paid an extra 2 bucks for a 300zxTT radiator cap. they also have a 300zxTT long block for sale that you can look at while you're waiting.

shouldn't have confused him. i've learned my leason before and i never mention the word infiniti when looking for parts. i usually refer to my car as a 300zx or in this case a 240.