How To: Swapping miata torsen LSD into N/A FC diff housing
07-09-03, 07:44 PM
#28
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Originally posted by Icemark
The gear ratio doesn't change, that is why you remove the old ring and put it on the new diff.
The miata ring and pinion are the wrong lengths and sizes to use in the FC diff. assembly.
The gear ratio doesn't change, that is why you remove the old ring and put it on the new diff.
The miata ring and pinion are the wrong lengths and sizes to use in the FC diff. assembly.
its just a ring gear swap, correct?
07-09-03, 08:37 PM
#29
Former Moderator. RIP Icemark.
Yes, and no
Its a diff swap keeping the existing FC ring and pinion.
If you changed the ring, (effectively changing the gearing) then you would have to re-space the pinion.
Its a diff swap keeping the existing FC ring and pinion.
If you changed the ring, (effectively changing the gearing) then you would have to re-space the pinion.
07-09-03, 08:55 PM
#30
Originally posted by Icemark
Yes, and no
Its a diff swap keeping the existing FC ring and pinion.
If you changed the ring, (effectively changing the gearing) then you would have to re-space the pinion.
Yes, and no
Its a diff swap keeping the existing FC ring and pinion.
If you changed the ring, (effectively changing the gearing) then you would have to re-space the pinion.
07-09-03, 10:54 PM
#31
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Originally posted by Rxmfn7
Yes, this is true. And I think that setting the pinion depth for a new ring and pinion set is something that is beyond most people's abilities (mine anyway). There are many special tools needed, and you really need to understand what you are doing.
Yes, this is true. And I think that setting the pinion depth for a new ring and pinion set is something that is beyond most people's abilities (mine anyway). There are many special tools needed, and you really need to understand what you are doing.
08-25-03, 06:54 PM
#34
94+ 1.8 Miatas use the torsen LSD. But not all of them, you just need to get lucky I guess 
Seriously though, I have no idea on how to tell if the miata will have the LSD or not. One method Ive heard is that if it is a 5-speed and has cruise control, it will have LSD. Im not sure how true it is, but every one Ive seen with cruise has had LSD.
Seriously though, I have no idea on how to tell if the miata will have the LSD or not. One method Ive heard is that if it is a 5-speed and has cruise control, it will have LSD. Im not sure how true it is, but every one Ive seen with cruise has had LSD.
Last edited by Rxmfn7; 08-25-03 at 06:57 PM.
10-02-03, 11:43 AM
#35
Just a small update for anyone interested. I was having problems with my diff at 1st. One thing, is that on S5 LSDs, the rear end uses un-equal length axle stubs. When using these on a torsen, or clutch unit, the longer stub will cross over and cause the LSD unit to be "fused" together, making it impossable for both wheels to spin at anything other than the same speed. I got a set of S4 axles stubs and it corrected that problem. Another thing, the backlash will need adjusted properly to spec. My gears were whirring when I put the rear end back in, so I needed to drop it again and adjust the backlash. It is a faily simple procedure, although you will need a few special tools (dial indicator and something to turn the things on the side of the bearings. Mazda calls for a differential wrench, but anything you can turn them with will be fine) The procedure to set backlash is explained in chapter 9 of the FSM, pages 9.43-9.45. Hope this helps..
10-02-03, 06:58 PM
#37
Originally posted by Mills
I thought this was an n/a housing-you were using tII axle shafts? Will the shafts from an n/a housing work? Or do you need the tII shafts?
I thought this was an n/a housing-you were using tII axle shafts? Will the shafts from an n/a housing work? Or do you need the tII shafts?
