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will s13/s14 diff fits into s15 pumpkin (spec-r, 6 speed, HLSD)

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punkelvin

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act of my 240sx

S14 with full S15 spec-r swap. 6 speed along with S15 pumpkin with HLSD.

i m upgrading to a 2 way LSD but looks like i can find an s13 or s14 2 way LSD much easier.

i've done the research knowing that s15 HLSD can swap into s13 s14 with the matching S15 half shaft (basically i m doing the other way around). so i m pretty sure i can put in a 2 way LSD for either s13 or s14 into my spec-r pumpkin with the s13/s14 half shaft (which i have some spare).

only a small catch is, s15 uses 13mm ring gear bolts and s13/s14 uses 12mm. which means the S13/S14 diff will have a smaller holes on the LSD?!

any solution on this? send it to machine shop to enlarge the bolt holes on the lsd?? (i feels kinda scary)

i can get a great deal on the S13 LSD but i don't wanna get stuck with the parts that i can't use.

thank you. appreciate it.
 
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if it helps, just put the calipers on the bolt holes of a R200-open head, ring gear is from a S15 but the spec s model which was a 5speed with the same setup as the S14 the hole sizes are 13mm, are you sure the S14 uses 12mm holes?
 
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