LSD With Drums
#1
LSD With Drums
I know..........LSD........HAHA. Ok. On to the serious issue. I have a 80 SA I just brought back from the dead yesterday. Well, I've spent the last week transpalnting a 81 12A from a donor, and I decided to use my RB intake, Holley carb, and RB header. I have a rear end that came out of my 83 GSL that I replaced with a 84 SE. The right side axle is bent in the GSL rear end. I have heard that the small axles are the same in the disk or drum rear ends. The only differance is the brake backing plates. So, can I use the axle out of the drum rear in the disk rear? If it will not work, then can I use the LSD out of the disk rear in the drum rear? I really don't care about using the disk rear in the SA because I would need the right park brake cables, and the proportioning valve. I guess the main question is about using the LSD in the SA rear end. Thanks guys. Sam.
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Frogman (01-30-23)
#6
OBEY YOUR MAZDA
Originally Posted by trochoid
Keep in mind that the big/small axle still applies during the swap. They must be the same.
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#7
Chad Carson
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Originally Posted by bad 83
I know..........LSD........HAHA. Ok. On to the serious issue. I have a 80 SA I just brought back from the dead yesterday. Well, I've spent the last week transpalnting a 81 12A from a donor, and I decided to use my RB intake, Holley carb, and RB header. I have a rear end that came out of my 83 GSL that I replaced with a 84 SE. The right side axle is bent in the GSL rear end. I have heard that the small axles are the same in the disk or drum rear ends. The only differance is the brake backing plates. So, can I use the axle out of the drum rear in the disk rear? If it will not work, then can I use the LSD out of the disk rear in the drum rear? I really don't care about using the disk rear in the SA because I would need the right park brake cables, and the proportioning valve. I guess the main question is about using the LSD in the SA rear end. Thanks guys. Sam.
Just an FYI, I put in a GSL rear disk from an 85 in my SA and kept the SA proportioning vale and it works great.
But if you use a 83 LSD it will fit in all 79-83 axles. And if your using a 84-85 it will only fit the 84-85.
I say just swap the LSD in as the rear disk is not that much of an upgrade. Just easier to replace brakes later.
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#8
Banned. I got OWNED!!!
Originally Posted by Kim
Now that You mention amall axles, If not from an Rx-7,(we didnt get LSD overhere untill the big axles) which car will have a LSD diff that fits the small axles on my car?
Thanks
Thanks
#9
The 83 disk rear I have is the small axle rear end. The SA axles are the same right? I am just scavenging parts that I already have to keep from putting a wad in this SA. I still have to pick up the Turbo FB from the painter this week. The SA was never supposed to be ressurected. It was just dumb luck running across an engine and trans. I gave $100 for the car. $150 for the drive train. $90 for the RB intake. $50 for the RB header. $50 for the Holley. About another $100 in misc. parts. Pissing of the neighbors taking the car down the street and back with only a header................priceless!
#10
Banned. I got OWNED!!!
[QUOTE=bad 83]The 83 disk rear I have is the small axle rear end. The SA axles are the same right? QUOTE]
how do you know its a small axle rear end?
axles from 79 to early 83 are the same size(small axle)
late 83, 84,85 are the same axle size(big axle)
how do you know its a small axle rear end?
axles from 79 to early 83 are the same size(small axle)
late 83, 84,85 are the same axle size(big axle)
#14
Junior Member
[QUOTE=680RWHP12A;6842895]
How would someone know if their 1983 RX7 is a early or late, for axel size?
Originally Posted by bad 83
The 83 disk rear I have is the small axle rear end. The SA axles are the same right? QUOTE]
how do you know its a small axle rear end?
axles from 79 to early 83 are the same size(small axle)
late 83, 84,85 are the same axle size(big axle)
how do you know its a small axle rear end?
axles from 79 to early 83 are the same size(small axle)
late 83, 84,85 are the same axle size(big axle)
#16
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[QUOTE=82GS-383;12547375]
there is no such thing, people get confused about 83 because its not the same as 79-82 or 84-85
79-82 is a small driveshaft flange, small axle
84-85 is a big drive shaft flange, and big axle
83 is the big driveshaft flange but small axle
79-82 is a small driveshaft flange, small axle
84-85 is a big drive shaft flange, and big axle
83 is the big driveshaft flange but small axle
#17
Junior Member
[QUOTE=j9fd3s;12547380]That's what I thought, but I figured it wouldn't hurt to ask.
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j9fd3s (01-26-23)
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