I want to run a welded diff in my FD
#1
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I want to run a welded diff in my FD
I have looked high and low and I still dont have a good understanding of which diffs swap to which cars. I do not want a clutch or torsen diff. I have used everything under the sun and welded is the way to go. Im new to this chasis.
My understanding thus far is that I need a series 4 non turbo model open diff. This diff will swap directly into my housing. Is that correct?
My understanding thus far is that I need a series 4 non turbo model open diff. This diff will swap directly into my housing. Is that correct?
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BUT, in my opinion, I think it's actually easier to have the FD torsen diff welded up than to gut/weld a turbo FC diff. In which case, you have everything you need right now, just have the helical gears welded. I had a welded torsen in my Turbo FC for a bit.
Plus, I would hate to see a perfectly good s4 turbo clutch-type diff go to waste.
Not the s5 viscous lsd's though. Nobody gives a rat's butthole about those. Paperweights. Difficult to weld.
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Thankyou for the insightful responses. I bought a s4 tII clutch type LSD from a member here for 300 shipped. Do these commonly need built or will I be good with shimming it so it locks hard and keeping the oil fresh?
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https://www.rx7club.com/build-thread.../#post11342277
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It doesn't make any since to buy a kazz or cusco when you can get the exact same thing fo 300. I'm going to insect the plates and then order as I see fit. Otherwise I'm just going to shim it to lock harder. Thanks for all the input and ill check out how get got more friction surface in his build thread.
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If you dont have the money for a 1.5 or 2 way its best to just weld it. I have many years on my s5 lsd welded and know it will never break. I will snap an axle before that happens. Its not worth putting them in just for them to wear out in an event or two just to pull it back out. The lsds when the fluid warms up it doesnt lock for crap and the clutch type will last a couple events but then will stop locking aswell.
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Not completely sure about clutch types but i know viscous lsds can be welded and the 3rd gen torsen diffs can be welded. I would assume the clutch types could still be welded but people pay pretty good money for those cause its a really good diff to run for a street car.
Last edited by TheGoldenSB; 07-07-13 at 07:35 PM.
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