Quick Lsd Question...
11-03-10, 02:12 PM
#1
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Quick Lsd Question...
I've looked into other differential threads. Lots of info, Just having trouble locking it down...
I want a CLUTCH-TYPE Lsd, to replace my V-Lsd (I have an S5 TurboII)
From what I understand my options are:
1) Get an S4 TII lsd housing and bolt it right in.
2) Get an S4 n/a GXL housing and Half-Shafts and change them out.
Can someone confirm this?
I want a CLUTCH-TYPE Lsd, to replace my V-Lsd (I have an S5 TurboII)
From what I understand my options are:
1) Get an S4 TII lsd housing and bolt it right in.
2) Get an S4 n/a GXL housing and Half-Shafts and change them out.
Can someone confirm this?
11-03-10, 03:25 PM
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Do you mean that either way, I would still need to swap shafts if I found an S4 Turbo diff?
Because I've heard somewhere that s4-Turbo to s5-Turbo bolts right up, and that s4-NA to s5-NA bolts right up as well.
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11-04-10, 11:28 AM
#6
The NA S4 would probably be fine, if you're making stock(-ish) power levels - but why bother putting a 22+ year-old part in that is less than what Mazda designed for the car? Just get an S4 TII LSD, then you won't have weak half-shafts (because you'd need to use the smaller, NA ones with the NA diff, the mounting flanges are different sized), won't have to get a custom driveshaft made up (to match the different pinion flange on the NA diff), and will have a diff designed for Turbo power levels.
11-04-10, 02:33 PM
#7
S4 TII diff housing with stubs.
Easy swap in. It will bolt right up.
I swapped out my 4.3 diff for a S4 TII rear in my GTUs and I had to swapped out the axels for turbo ones too, but since you already have a turbo car, all you need is just the diff with the stubs. You might as well also install a pinion snubber and replace the diff rear bushings. Also, seeing as the clutch wears out in the diff, you might as well replace the clutches also. Mazdatrix sells the clutches.
Easy swap in. It will bolt right up.
I swapped out my 4.3 diff for a S4 TII rear in my GTUs and I had to swapped out the axels for turbo ones too, but since you already have a turbo car, all you need is just the diff with the stubs. You might as well also install a pinion snubber and replace the diff rear bushings. Also, seeing as the clutch wears out in the diff, you might as well replace the clutches also. Mazdatrix sells the clutches.
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11-15-10, 10:58 PM
#8
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S4 TII diff housing with stubs.
Easy swap in. It will bolt right up.
I swapped out my 4.3 diff for a S4 TII rear in my GTUs and I had to swapped out the axels for turbo ones too, but since you already have a turbo car, all you need is just the diff with the stubs. You might as well also install a pinion snubber and replace the diff rear bushings. Also, seeing as the clutch wears out in the diff, you might as well replace the clutches also. Mazdatrix sells the clutches.
Easy swap in. It will bolt right up.
I swapped out my 4.3 diff for a S4 TII rear in my GTUs and I had to swapped out the axels for turbo ones too, but since you already have a turbo car, all you need is just the diff with the stubs. You might as well also install a pinion snubber and replace the diff rear bushings. Also, seeing as the clutch wears out in the diff, you might as well replace the clutches also. Mazdatrix sells the clutches.
^So all turbo axles the same length? ...is this true? meaning that I don't need different axles (only the stubs).
Did you source the axles from an S4 t2, specifically?
More importantly, will the diff/pinion/stubs/ring-gear from the s4 t2 fit into my s5 VSLD casing? ...Because I found said parts, but they dont come in the casing.
btw, thanks for the helpful input everybody. Every bit helps.
...Even the gel-tab and OJ comment
11-16-10, 12:34 AM
#9
^So all turbo axles the same length? ...is this true? meaning that I don't need different axles (only the stubs).
Did you source the axles from an S4 t2, specifically?
More importantly, will the diff/pinion/stubs/ring-gear from the s4 t2 fit into my s5 VSLD casing? ...Because I found said parts, but they dont come in the casing.
btw, thanks for the helpful input everybody. Every bit helps.
...Even the gel-tab and OJ comment
Did you source the axles from an S4 t2, specifically?
More importantly, will the diff/pinion/stubs/ring-gear from the s4 t2 fit into my s5 VSLD casing? ...Because I found said parts, but they dont come in the casing.
btw, thanks for the helpful input everybody. Every bit helps.
...Even the gel-tab and OJ comment
I bought a set of halfshafts last year from Japan2LA, I dont know if it was a S4 or S5, though I dont think it matters much as long as its a turbo half shaft.
11-16-10, 09:38 AM
#11
Why don't you just swap in a Kaaz LSD or similar? Swapping an old S4 TII unit in when you already have a S5 TII unit makes no sense. You will be complaning after you find out you will need to rebuild the old S4 TII unit and the time and money wasted could of easily been saved by just using your existing diff components.
11-16-10, 11:33 AM
#12
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Why don't you just swap in a Kaaz LSD or similar? Swapping an old S4 TII unit in when you already have a S5 TII unit makes no sense. You will be complaning after you find out you will need to rebuild the old S4 TII unit and the time and money wasted could of easily been saved by just using your existing diff components.
And the VLSD just won't cut it. The s4 clutch type diff's supposedly lock harder and more consistently for that type of driving. I'm aware that they need to be rebuilt from time to time, but It still seems cheaper than buying a pricey aftermarket diff.
Believe me, If money grew on trees, I'd get a 1.5 in a heartbeat.
But instead of spending close to a grand on a Kaaz, I figure this would still be a step up from what I have.
11-16-10, 12:24 PM
#13
^Well, I'm trying to get the car set up for drifting for next season.
And the VLSD just won't cut it. The s4 clutch type diff's supposedly lock harder and more consistently for that type of driving. I'm aware that they need to be rebuilt from time to time, but It still seems cheaper than buying a pricey aftermarket diff.
Believe me, If money grew on trees, I'd get a 1.5 in a heartbeat.
But instead of spending close to a grand on a Kaaz, I figure this would still be a step up from what I have.
And the VLSD just won't cut it. The s4 clutch type diff's supposedly lock harder and more consistently for that type of driving. I'm aware that they need to be rebuilt from time to time, but It still seems cheaper than buying a pricey aftermarket diff.
Believe me, If money grew on trees, I'd get a 1.5 in a heartbeat.
But instead of spending close to a grand on a Kaaz, I figure this would still be a step up from what I have.
You may spend anywhere from 200 - 500 for a used s4 diff. Plus you will probably have to rebuild it sometime. I really suggest you look into using your existingcomponents with an aftermarket lsd. If your really planning on drifting you will be spending way more money than 1k.
11-16-10, 01:24 PM
#14
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They only lock when the clutch packs are working properly. Really doubt a used 20year old unit is in prestine condition unless you are lucky to find a low milage unit.
You may spend anywhere from 200 - 500 for a used s4 diff. Plus you will probably have to rebuild it sometime. I really suggest you look into using your existingcomponents with an aftermarket lsd. If your really planning on drifting you will be spending way more money than 1k.
You may spend anywhere from 200 - 500 for a used s4 diff. Plus you will probably have to rebuild it sometime. I really suggest you look into using your existingcomponents with an aftermarket lsd. If your really planning on drifting you will be spending way more money than 1k.
11-16-10, 04:21 PM
#16
Have you looked at the parts for a S4 T2 lsd clutch rebuild? Last time I checked, Mazda doesn't stock parts to rebuild those anymore. I'm just trying to help you out. As you already see, there are already used units that you can buy and have better options and support for.
11-16-10, 05:02 PM
#17
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Yes, they are clutch type.
Have you looked at the parts for a S4 T2 lsd clutch rebuild? Last time I checked, Mazda doesn't stock parts to rebuild those anymore. I'm just trying to help you out. As you already see, there are already used units that you can buy and have better options and support for.
Have you looked at the parts for a S4 T2 lsd clutch rebuild? Last time I checked, Mazda doesn't stock parts to rebuild those anymore. I'm just trying to help you out. As you already see, there are already used units that you can buy and have better options and support for.
I don't really know too much about rear end setups, other than what I've been able to absorb from the other threads.
Its a completely different ball game from engine work
What are you using? if you don't mind me asking.
@ 87 T-66
... Your tomei 1.5 way is looking very tempting right now.
Don't have the funds at the moment but I'll definitely shoot you a PM when my wallet gets a little thicker
11-16-10, 05:06 PM
#18
Really, I don't have anything special at the moment. I started off with a Vert with an Open LSD. I got a S5 TII VLSD in it. My next step now is getting a clutch type LSD such as a Kaaz and change the gearing out to 4.3. That's in the future though, not too worried about it now.
I don't drift, but I do grip/autox once in a while. The VLSD serves its purpose for what I use it for and is way better than the open unit I had.
I don't drift, but I do grip/autox once in a while. The VLSD serves its purpose for what I use it for and is way better than the open unit I had.
11-16-10, 08:16 PM
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But driveability would be down the *******, and I'd be replacing my street tires a lot more often with the rear end locked all the time.
I hate to drop that kinda cash on a 1.5 or 2way, especially since I'm just going to be starting out. But it will pay off i guess.
Go Big or Go Home, right?
11-16-10, 09:44 PM
#21
If its going to be a dedicated drift car, a welded diff is not that bad.
With a stock clutch lsd from the S4, its only going to lock up on accerleration. But the stock S4 lsd should be enough if you are just starting out to build the car. I found that a good way to test out the S4 lsd to see if it needs overhauling is to get one tire on wet, then the other on dry, do a burnout, and creep the car forward till the wet tire hits dry land, and if both tires are still spinning, you wont need to rebuild it yet. But if one of them start to slow down then it will need a rebuild.
Dont forget to replace the mounts and install a pinion snubber!!
With a stock clutch lsd from the S4, its only going to lock up on accerleration. But the stock S4 lsd should be enough if you are just starting out to build the car. I found that a good way to test out the S4 lsd to see if it needs overhauling is to get one tire on wet, then the other on dry, do a burnout, and creep the car forward till the wet tire hits dry land, and if both tires are still spinning, you wont need to rebuild it yet. But if one of them start to slow down then it will need a rebuild.
Dont forget to replace the mounts and install a pinion snubber!!
11-17-10, 01:40 PM
#22
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^Good to know.
And yes, I had plans to replace the diff mounts, as well as most of the other suspension bushings for that matter.
I saw another write-up about the pinion snubber install too, so I'll look into that in greater detail
And yes, I had plans to replace the diff mounts, as well as most of the other suspension bushings for that matter.
I saw another write-up about the pinion snubber install too, so I'll look into that in greater detail
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