Results 1 to 5 of 5

Thread: Flex Plate Interchangability?

  1. #1
    Audio/Offroad Enthusiast
    Join Date
    Sep 2006
    Location
    Oak Forest, Illinois
    Posts
    1,828

    Default Flex Plate Interchangability?

    Are the XJ Flexplates all interchangeable. 91-?
    1994 Jeep Cherokee Sport 4.0/AW4/NP231 '11-Present

    Rusty's 4.5" lift with a saggy rear end =(
    Homemade PVC Snorkel
    30x9.5x15 BFG KM2 on ZJ Canyons
    &
    33x12.5x15 Dunlop Mud Rovers on Krager Soft 8's D Window

    1996 ZJ Green '10-11 Ripping and scrapping
    1992 Acura Gen 2 '09-10 Beat but still runs great SOLD
    2006 Chevrolet Cavalier '07-09 2 motors in 6 months JUNK
    1992 Firebird Red V6 '07-07 sold immediately
    1996 ZJ Beije '05-07 Traded in(lemon)
    1997 TJ Red '04-06 Favorite but traded in for mom's H3 -.-

  2. #2
    Registered
    Join Date
    Sep 2004
    Location
    Long Island, New York
    Posts
    753

    Default

    No they are not, they are drilled differently for differences in the CPS systems. Sadly I don't know exactly what years are the same but i know that the flexplate for my 92 only goes in a couple of models. try rock auto and see what years they list as similar or just call the dealer and see if they can tell you what years your model fits

  3. #3
    Moderately Senior lunghd's Avatar
    Join Date
    Aug 2000
    Location
    In "The Comfy Chair".
    Posts
    4,560

    Default

    Different year-groups of flexplates/flywheels = different engine timing... sorry I don't know what years HO are 1:1 swaps.

    Renix (1990 & earlier) is different than HO and there are several different HO timing set ups. Different cams, heads and flexplates can work together but the flexplate seems to be the biggest PITA if it's not right. (A head or cam swap can be compensated for by jogging the 'distributor' a notch one way or the other in most cases.)

    Let's build a simple list of flexplate/flywheel interchange years.

    • RENIX (non-HO) - ALL through 1990 interchange.
    "...the advice given above is somewhat arrogant and in some cases wrong..." . (I'm not an expert... I just play one on the internet.)

    Another Freakin' Jeep Cherokee Website. _____________ Sure you're smart... but do you have what it takes to make "The List"?


    1990 XJ

  4. #4
    Registered saudade's Avatar
    Join Date
    Jun 2004
    Location
    SoCal
    Posts
    716

    Default

    Well, I guess that depends on your definition of "interchangeable".

    The parts guides I have show the following:

    1987-1990 - all same part number (pn)

    1991-1992 - same pn

    1993-1995 - same pn

    1996-2001 - same pn

    I can understand the switch from Renix to OBD I in 91 then to OBD II in 96. Not sure why the difference between 92-93.

    *disclaimer* - since the topic is flex plates, the info above only applies to auto trans in XJs.
    Dad's Taxi:
    '88 XJ Laredo (Dad's Taxi) - 190K and going strong.
    2wd, K&N filter in stock airbox, Ford Injectors, No other mods

  5. #5
    Moderately Senior lunghd's Avatar
    Join Date
    Aug 2000
    Location
    In "The Comfy Chair".
    Posts
    4,560

    Default

    Thanks Saudade!

    I think that was one of the years that cam timing changed.
    "...the advice given above is somewhat arrogant and in some cases wrong..." . (I'm not an expert... I just play one on the internet.)

    Another Freakin' Jeep Cherokee Website. _____________ Sure you're smart... but do you have what it takes to make "The List"?


    1990 XJ

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Jeep Parts | Jeep Accessories | Trektop NX | Jeep Seat Covers | Jeep Wrangler | Jeep Wrangler Parts | Jeep Wrangler Accessories | Bestop | Jeep Tires | Jeep Stuff | Jeep Wrangler Tires | Jeep Wheels