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New Ford Racing IRS Diff Cover/Girdle

Discussion in 'Driveline' started by 03 DSG Snake, Jul 27, 2011.

  1. GodStang

    GodStang Well-Known Member Established Member

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    Ordered mine today.
     
  2. 03 Indy Cobra

    03 Indy Cobra Well-Known Member Established Member

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    Ordered mine from Tousley Ford today.
     
  3. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    Just a heads up guys:

    The instructions say to open the plug at the top of the diff and open the fill level plug in the middle. Then pump fluid into the diff in the top hole. Then stop pumping when you see fluid coming out the middle (level) hole.

    Doing it per the instructions is too much fluid. It will hold 2 qts 22 oz this way and blow it out the vent tube when you drive.

    I found that 2 qts 16 oz (2.5 qts) is perfect and will not blow out the vent hole.
     
  4. 03 Indy Cobra

    03 Indy Cobra Well-Known Member Established Member

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    Thanks for the heads up.:beer:
     
  5. speedy98snake

    speedy98snake Needs another Cobra Established Member

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    Sent an email reguarding the diff cover and possibly other IRS parts. Ready to order!


    Carlos
     
  6. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    Check your email. I replied to your inquiry.

    :thumbsup::coolman::beer:
     
  7. GodStang

    GodStang Well-Known Member Established Member

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    Sweet mine comes in today. Will be installing 3.55, Detroit Tru track, and this cover today. Will post pics.
     
  8. GodStang

    GodStang Well-Known Member Established Member

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    FRPPCover.jpg

    FRPPback.jpg

    CoverFronts.jpg

    CoverBacks.jpg
     
    Last edited: Feb 10, 2012
  9. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    Those photos really do no justice to the incredible increase in structural rigidity of the new Ford Racing diff cover. But I can assure everyone that this is a serious upgrade in components!

    :thumbsup::coolman::beer:
     
  10. speedy98snake

    speedy98snake Needs another Cobra Established Member

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    Got all my parts in and installed. The parts are nice and happy im with the service from FTBR.

    I have a question for you guys with the cover and front and rear diff bushing from FTBR; Did any of you notice a noise increase from the diff? Mine is pretty loud. As soon as the car starts rolling you can hear everything rotating but i figured its the nature of the beast. I just wanted to see what everyone else has to say.
     
  11. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    Yes increased driveline noise is normal. With the solid diff bushings the gear noise in transferred to the chassis.
     
  12. 03cobraracer

    03cobraracer Active Member Established Member

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    how do u like the MM bushing kit? get rid of the hop?
     
  13. GodStang

    GodStang Well-Known Member Established Member

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    Wow you put a half gallon in???? That is why you are blowing it out. You need about 2.6 to 2.9 pints. Not quarts.
     
  14. earico

    earico It's 4:20 somewhere... Premium Member Established Member

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    No the reason it was coming out is because I filled it exactly as the INSTRUCTIONS said to do. Does anyone actually read the instructions when installing a part? I do.

    I know the difference between pints and quarts. Learned that in elementary school. I know the oem fill is 2.9 pints or 1.5 quarts. Said this before but if you read the instructions and fill it that way it will take over 2.5 quarts.

    The new cover will hold more capacity than the OEM one. I have about 2.25 quarts in mine now with zero issues which is 1/4" from the top of the fill level hole.
     
    Last edited: Mar 3, 2012
  15. Blueline

    Blueline Active Member Established Member

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    I filled mine with 2.5 quarts and all seems well :shrug:
     
  16. N/Angel

    N/Angel crazy Swiss Chick! Established Member

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    well, car is apart, solid axle gone, IRS ready to go in with all the new bushings but the diff support from FT5000 DOES NOT FIT the Ford Racing cover, the differential sits crooked in there!

    anyone got pics of the FT5000 kit installed with the unmilled stock Ford Racing cover???

    :cuss:
     
  17. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    If you have one of our earlier FT 1400 rear diff lowering mounts they do not fit the Ford Racing cover. It requires some additional milling to the mount.

    If you're putting that in the subframe with the lowering mount and the Ford Racing cover there will be interference issues as explained in the FAQ on our site:

    FTBR FAQ's

    Q: "I see that you offer a Delrin isolated lowering rear differential mount FT 1401. How's that different from your FT 1300 Delrin rear diff support?"

    A: The FT 1300 Delrin rear diff support bushing set replaces the rubber bushing in the OEM mounting bracket. Used in conjunction with our front diff mounting bushing set FT 1200, you will be able to improve your driveline angle as it came from the factory but you will not be able to completely optimize it. In order to be able to completely optimize the driveline angle you'd need the lowering rear diff mount. If you currently have a driveline vibe I would highly recommend the lowering rear mount. If not, you most likely don't need it. The FT 1401 comes complete with the Delrin bushing installed in it. The FT 1401 is modified to work with the Ford Racing rear diff cover we now offer. However, if you're using the FT 1401 combined with the Ford Racing diff cover you will run into some clearance issues with the inner toe link mounting brackets on the subframe. We now offer a machined Ford Racing cover FT 1350M which is specifically milled to install in the subframe without any clearance issues.

    Hope that helps.
     
  18. Ceanes

    Ceanes Member Established Member

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    After installing your entire kit Bruce is it mandatory to have it aligned?

    Thanks
    Chuck
     
  19. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    Well............ it's certainly recommended depending on how many parts have been changed.

    Any time you disassemble IRS components, it's a good idea to have it realigned once you put it all back together.

    FWIW
     
  20. N/Angel

    N/Angel crazy Swiss Chick! Established Member

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    I ordered my FR1400 kit after asking a couple of times if it fits with the unmodified Ford Racing cover, I think it was about 2 months ago or so, you were already selling the Ford Racing covers at that time so I doubt it's an "early" kit.

    I ran into a bunch of problems with this IRS swap, the mount not clearing the cover was the smallest one to fix by modifying the mount itself.
     

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