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WTD. 4.1 or 4.3 ratio diff for s15 - Hardtuned.net

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WTD. 4.1 or 4.3 ratio diff for s15 

4 replies to this topic

#1 braddo1600

  • Joined:14-February 08

Posted 15 June 2017 - 03:12 PM

As stated above .. chasing an s15 diff with 4.11,4.3 gear ratios I am located in Newcastle but I am sure we can arrange something .. please call or text 0412426573

#2 pmod

  • Joined:13-May 10
  • Location:Australia NSW
  • Car:Fruity 180sx

Posted 16 June 2017 - 07:53 AM

Pretty sure I have an S13 4.1 R200 with an S14 2-bolt rear cover attached, as well as an S14 3.69 R200 with an S13 rear 4-bolt cover. The S13 diff has 5-bolt half-shafts and the S14 has 6-bolt half-shafts, both with a factory viscous LSD center.

To be honest, your best bet to get a 4.1 ratio is to simply take an S13 diff and change the rear cover to 2-bolt, change the drive shafts to 5-bolt if you have 6-bolt on your car (the 5-bolt are stronger, so it's not a bad thing), then change the diff center to a 1-way mechanical or whatever you want (assuming you wanted a center the equivalent to an S15 Helical). You can technically swap ring and pinion gears around, or swap an S15 center into an S13 diff, but for the effort I'd personally just change the drive shafts. Shitloads easier to do imo, having swapped shafts a bunch of times now.

#3 pmod

  • Joined:13-May 10
  • Location:Australia NSW
  • Car:Fruity 180sx

Posted 16 June 2017 - 08:05 AM

The ends of the drive shafts are not interchangable too (I tried fitting 6-lug ends into 5-lug cups, and they physically don't fit), so you either swap the entire shaft or you try to change the half-shafts in the diff. Again, changing ring/pinion/halfies is not worth the effort imo, when you can just swap drive shafts in an hour or so.

#4 robbo_rb180

  • Joined:26-August 08
  • Location:Australia QLD
  • Car:sil80 & s14

Posted 27 June 2017 - 02:09 PM

i've a std r33 housing with 4.11 ratio no centre that i can post

#5 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 28 June 2017 - 08:25 PM

I got a s15 helical lsd with 3.9 ratio abs diff but has 5bolt half shafts

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