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Thread: Help ! 1990 T-bird 8.8 IRS oil seals? Part number?

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    Member CNIdog's Avatar
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    Help ! 1990 T-bird 8.8 IRS oil seals? Part number?

    I've been trying to get axle oil seals for the 28-spline IRS pumpkin for the left and right side. Every part store, including Ford, order in seals which are way too big. (31-spline?)

    Anyone have the part numbers from any source ?

    I have a 8.8 pumpkin with casting code that looks like RF.E95H-DA rev E

    tag codes is 3L27 (327 ratio traction-lock) 8.8

    model S511B

    build date: 0C17 - 1990 March 17 (St Patricks day which may explain it all ;-) )

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    Senior Member karlos's Avatar
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    Photo below shows what was in the box of parts that came with my rebuild kit. M-4413-A includes the bearings and the seals; about $30 from Summit (https://www.summitracing.com/parts/fms-m-4413-a)

    Sorry but I can't find the part number on just the seal alone.



    --
    MKIV Roadster #8641
    Complete Kit with IRS, Eaton Detroit Truetrac, 3.55 gears, Wilwood Brakes
    Ford Racing Z427 w/ Pro-M Sequential Port EFI System
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  4. #3
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    Look for a part number on the seal!
    If the seal is out, go to a bearing supply company with it and they can find one for you!
    Mk3.1 347 AFR 205cc Heads A9L EFI siemens deca 60lb injectors MSD 6AL ignition Vortech V-3 3 Link PS/PB

    -- If you can’t fix it with a hammer, you have an electrical problem ! —

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