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Thread: 8" 4runner diff swap into a Corolla?

  1. #1
    Join Date
    Mar 2013
    Location
    Vancouver, BC
    Posts
    1,190

    8" 4runner diff swap into a Corolla?

    So I'm trying to figure out some LSD options for my X3 Cressida. The stock diff is a 7.1" and as far as I'm aware, nobody makes any aftermarket diffs for it? And I don't think I can just swap out center sections to something bigger.

    In a perfect world, I'd just swap out to a 7.5" out of a Supra, but since those are getting hard to find, I've pondered an idea. I have an 8" 4Runner rear diff just laying around and I was wondering if anyone has ever tried swapping one into a Corolla? My primary concern will be whether or not I can make a drum setup that will clear 14's seeing as they're factory 16"

    Does anyone have any experience with this?
    '80 MX32 sedan |'83 AE71 wagon |'84 AE86 hatch
    '85 AE86 coupe |'86 AE86 hatch |'86 AE86 coupe
    '88 MR2 S/C |'86 S12 hatch |'88 Silvia K's
    '91 Z30 Soarer '92 JZS147 Aristo |'92 S13 coupe
    '93 R33 Skyline |'98 S14 kouki


    Quote Originally Posted by JungleMatic View Post
    Is dyno like 200 for the hp if mustang shifts but 300 if corolla shifts?

  2. #2
    Join Date
    Jul 2006
    Location
    BC
    Posts
    1,989
    Is the width a concern, compared to the stock diff? I know the earlier 2wd pickup 7.5 diffs hold up to v8 abuse, if the 4R diff is too wide.

  3. #3
    Join Date
    Nov 2004
    Location
    Edmonton, Alberta
    Posts
    5,287
    This is probably not super helpful, but TRD did make an LSD for the 7.1" differentials, part number 41301-MX001. It's long discontinued, and it's probably harder and more expensive to find than swapping in a different sized differential, but it exists... somewhere...

    Jeff

    2011 GSE20 Lexus IS350 6MT F-Sport with LSD
    2005 NCP13 Toyota Yaris RS 5MT Hatchback
    1993 TCR10 Team Mondor Toyota Previa GT-S RM 5MT Studded Ice Race Van
    1986 AE86 Toyota Corolla GT-S 5MT Supercharged

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