Quick rear 5 lug spacer question

[Guest iskone]

I've seen a few different numbers as to what size the rear spacers need to be when using 300ZX front hubs to make them equal with the fronts.

 

So what is it 1.25", 1.4", or 1.5" ?

 

Thanks

[Doug71zt]

That's a tough question to answer - there are a couple variables. The Z31 hub adds 19mm - 3/4 inch of offset to a 240Z hub. 280Z hub is different - I believe - It's been years since I ran a 280Z. Are you using a slip-on rotor on the front? That will change the offset of the rim you use. I run a .200" slipon spacer with the Z31 front hub to make the 17X7 38mm offset rims line up on the hub centerline.

Now for the rear - what are you running for a rear rotor? The flange thickness will change if you have drums or discs or whatever. I run a 1.75" spacer on my car - but I run 2 piece discs that mount onto my spacer. So - Anywhere between 1.4 - 1.5 will get you in the ballpark. It also depends on the rim offset you are running. Mine are 17x7 with 38mm offset. Z32 rims 16X7.5 with 245/50/16 will fit my car also.

 

Hope this helps you out.

 

Doug

[Guest iskone]

I plan on buying the Willwood kit off Juan for the front and possibly the rear. I still need to figure out the rear caliper size since I don't want to run into any brake problems.

 

I'm trying to find the right size for the spacers and then buy my wheels acordingly.

I know that the spacer size will be dtermined by wheel offset.

What I want to do is get the mounting surfacees of the front and rear equal so I can buy the same offset on all four wheels. Hopfully saving me some money buying wheels off the internet.