miata rears
#2
Senior Member
Join Date: Feb 2001
Location: West-Island, Qc, Canada
Posts: 562
Likes: 0
Received 0 Likes
on
0 Posts
Swapping the later 94+ rear into a 1990-93 Miata is a bolt-in but requires replacing the entire diff housings assembly, driveshaft and half-shafts from the later 1994+ cars
It will probably not fit the 84-85 disc brake axles...
Trending Topics
#12
Turbo Driver
Join Date: Nov 2002
Location: Delaware
Posts: 615
Likes: 0
Received 0 Likes
on
0 Posts
I' new to all of this, so I want to ask a few questions.
are you talkign about swapping an independant rear from a Miata into a FB? Is that possible? And other than the independant rear, what are the advantages, and is is really worth it?
My local junkyard has a '95, and I'd do it if it was worth it. Otherwise, I'll see it to one of you who thinks it is.
are you talkign about swapping an independant rear from a Miata into a FB? Is that possible? And other than the independant rear, what are the advantages, and is is really worth it?
My local junkyard has a '95, and I'd do it if it was worth it. Otherwise, I'll see it to one of you who thinks it is.
Last edited by thecause17; 04-21-03 at 08:02 PM.
#13
Rotary Freak
iTrader: (6)
Jayroc, the 90 Miata has a smaller diff than first gen cars and will not work.
There are two reasons folks go with the Miata third members; one, the gears (some have 4.10 and others have 4.30); send the Torsen diff that is available in a few models.
So to make this work in a first gen you need an 84-85 rear with the larger axles (either GSL or GSL-SE). This process will not work for an earlier rear axle housing.
There are two reasons folks go with the Miata third members; one, the gears (some have 4.10 and others have 4.30); send the Torsen diff that is available in a few models.
So to make this work in a first gen you need an 84-85 rear with the larger axles (either GSL or GSL-SE). This process will not work for an earlier rear axle housing.
#14
Turbo Driver
Join Date: Nov 2002
Location: Delaware
Posts: 615
Likes: 0
Received 0 Likes
on
0 Posts
Hmmm, I'll have an SE, so I could do it.
But yo're only using the differential right, not half shalfs and htings like that, so in other words, you would have independant rear.
From what I know, if the Miata had cruise control, it has the lsd, the one I spoke of has it.
So would it be worth it to do this to my SE? What gears does it have, and is the Torsen LSD any better than what is currently in the SE?
I just want to know if this would be justified. It would cost me very little, but that's beside the point.
But yo're only using the differential right, not half shalfs and htings like that, so in other words, you would have independant rear.
From what I know, if the Miata had cruise control, it has the lsd, the one I spoke of has it.
So would it be worth it to do this to my SE? What gears does it have, and is the Torsen LSD any better than what is currently in the SE?
I just want to know if this would be justified. It would cost me very little, but that's beside the point.
#15
Rotary Freak
iTrader: (6)
The GSL-SE has a gear ratio of about 4.07 or 8 (I do not recall the specific numbers off the top of my head). So, if you get a 4.10 rear gear then there will not be much of a change; but the 4.30 you will get a boost.
The third member in the GSL-SE is actually stronger than the Torsen rear end. If you are drag racing then you want the LSD. If you are road racing or autocrossing the Torsen is the hot stuff. It will help you exit corners.
How to find a Torsen rear end? I understand that you look for a 94 to 97 Miata with a stick and power windows.
Hey, good luck!
The third member in the GSL-SE is actually stronger than the Torsen rear end. If you are drag racing then you want the LSD. If you are road racing or autocrossing the Torsen is the hot stuff. It will help you exit corners.
How to find a Torsen rear end? I understand that you look for a 94 to 97 Miata with a stick and power windows.
Hey, good luck!
#16
Right near Malloy
iTrader: (28)
Join Date: Dec 1999
Location: Behind a workbench, repairing FC Electronics.
Posts: 7,841
Received 510 Likes
on
345 Posts
Nah... I've browsed the Miata Forums... That power window or cruise control rule is only 99% true... Too much error for my taste... Real test is to open the fill plug and see vertical worm gear or spider gears, or somethig like that...
Unless I read wrong, which I tend to do a lot.
Unless I read wrong, which I tend to do a lot.
#21
Got Boost?
The actual clutch LSD part of the diff isn't whats whining.... its the ring and pinion. So if you do the swap don't forget the ring and pinion, and to get them adjusted correctly.
Thread
Thread Starter
Forum
Replies
Last Post