I'm trying to order the right rotors.
I have a 90 maxima.
I bought 94 rear calipers.

89 to 90 part numbers for rotors are different than 91 to 94.

Will my new calipers not work?

Or am I cool if I buy 94 rotors?

 

did you buy loaded calipers with the bracket?

 

triplegmax is going through the same thing. The 91+ calipers are bigger and the older wont bolt up (I sold him a 90 caliper months ago) I guess the rotors are diffrent too. PM him and see if he hasnt bought the right caliper yet you guys might be able to trade.

~Alex

 

Yes, caliper with bracket.

 

not meaning to jack your thread or anything but. how can i add rear disc brakes to my 1990 GXE. It has drums n once i get some wheels that drum is gonna ruin the looks.

 

calipers were changed 9/90 according to mizereeX

hey if you need the pass side...ill send it to you, just pay me shipping. with the bracket and bolts. send me an email at gregg@gregg-henry.com and i can give you my cell number. im hardly ever on aim anymore.

 

is it possible to change rear drums to discs? is it even worth the trouble?

 

Yes, read the stickies, there is a conversion writeup somewhere in there.

 

the earlier bracket that went to the strut (flat piece of metal) is different than the later one.

ROTOR
Note: rear; solid disc; w/ rear disc; sedan; from 9/1989 to 8/1990; overall dia.: 258.0; min thick: 9.0; height: 45.0

ROTOR
Note: rear; solid disc; w/ rear disc; sedan; from 9/1990; overall dia.: 258.0; min thick: 8.0; height: 44.5

if you switch the rotor to match the caliper it may work, but I'm pretty sure the caliper will end up being spaced too far out and would have a better fit from an 86 Z31 (I think that's the deal)
a search on rear Z31 BBK will give you more info

 

BBK will be much later on. Your right though. I got the newer rotor with the newer caliper and it's too spaced out. I'm just going to ga back to the salvage yard and get the newer strut bracket. Bummer. Good little lesson to learn.

 

Sorry to open a 4 month old thread...but isn't putting post 90 calipers on an 89-90 hub assembly and bracket the same thing as a BBK? After reading info on them, is seems that the rear BBK kit is essentially the same as putting 89-90 rear caliper brackets on 91-94 calipers, then using Z31 rotors. Correct??

 

Not sure about the z31 rotors fitting. I didn't pursue it because I think my wheels are too small.

I think it might work.

 

our rear brakes suck. its a 3rd gen fact.

 

After replacing everything, they're tight. No maintenance kills them.

 

I replaced the rear calipers, rotors, pads, and bleed the brakes (all 4 ends) and I still cant tell a difference in rear braking power.

 

Did you break em in?>

 

i did the 40 to 5mph, then 2x 60 to 5mph runs, then a 60 to 0 mph with out standing on the brakes to avoid imprinting them.


If thats what you mean...

 

Yeah, I used the ebake to help cut it a little better.

 

the Z31 rotor BBK fits under the stock 92-94 SE wheels just fine.

 

I have 99 se's

I was dead certian the bleeder wouldn't clear.

 

the stock 92-94 sawblades won't fit over the front BBK though, right? Thats a 13" rotor plus z32 caliper. I can't imagine there to be enough clerance.

 

Z31 is REAR BBK.

Front rotor stock maxima 280mm
Rear rotor stock maxima 258mm

1987 300Z rear rotor 282mm