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  1. merc123

    Rear Differential symptoms and solutions.

    I hear ya. I wish I knew that before I threw $300 at a junk yard special installed.
  2. merc123

    Rear Differential symptoms and solutions.

    I bought one from Ford Racing with everything inside the rear end. All I had to do was slide in my axles from my old one and put brakes and miscellaneous brackets from the old one. It was $700 plus I think $150 shipping. Ford quoted me over $1,200 just to rebuild the differential... I think...
  3. merc123

    Vibration on take off, terrible on inclines

    Someone mentioned clutch shudder since it's a performance clutch. Maybe I'm just not revving it up enough ;)
  4. merc123

    Vibration on take off, terrible on inclines

    Guess I'll go back to a stock clutch. You'd expect more out of a $300 clutch. I checked with Fidanza and found this: LEGAL POLICY HIGH PERFORMANCE PARTS, SERVICE AND INFORMATION EXCLUDED FROM WARRANTY: Due to the unusual stress placed on high performance parts, and because of the...
  5. merc123

    Vibration on take off, terrible on inclines

    I have a new transmission, FRPP rear end and Fidanza 2.1 clutch. Before it didn't do this. 1. On a slight normal take off the car has a slight fibration. I can't really tell too much where it is. 2. On a quick take off it vibrates the entire car and violently shakes the gear shifter...
  6. merc123

    3.73 vs. 4.10 - My actual experience

    I picked up 2 MPG the other day by switching gas stations. Not sure how consistent it is but I'm going to start using that station from now on. I fill up every night so within the week I'll have at least 4 fill ups from that station to compare. I was using RaceTrac but this one is a QuikTrip...
  7. merc123

    Rust on roof

    I've got a friend in the paint/body industry so I may just ask him what to do with it.
  8. merc123

    Rust on roof

    I noticed a small spec, about 1/4" or less diameter, where the paint got chipped and now it's rusting. How can I go about removing it and dropping some touch up paint into it? I was thinking of using a small grinding stone like you find on a dremel and then dropping the paint into it.
  9. merc123

    3.73 vs. 4.10 - My actual experience

    I just bought a 2nd set to put them on. Found my spreadsheet I used to track my Mustang. I put the original set on at 57,433 miles and now I'm at 86,000+. Not bad for this tire with no rotating at all (different front/rear sizes). The front are definitely worse than the back but aren't...
  10. merc123

    3.73 vs. 4.10 - My actual experience

    My BFG KDW2's spin even easier now...and it's no where near intentional. They're at the wear bars and have new ones coming in Wednesday so hopefully it'll fix the issue.
  11. merc123

    Vibration at 90+ MPH

    It was about 3500 to 4000 RPM. I can't feel the vibration at that RPM in any other gear. I think it had to do with the speed. I've got some new tires coming so I'm going to get them balanced and see if they make a difference.
  12. merc123

    Official Tremec 3650 Issues Thread

    I've got a rebulit 3650 with maybe 5,000 miles on it and 2nd gear is a hassle in warm and cold. I usually skip it.
  13. merc123

    Gears and incorrect speedo

    I'd get a speedcal ASAP. I incorrectly set my speedcal so I was doing 30 MPH and it showed 150. I racked up 7 miles in like 2 real miles. Ford Mustang: Mustang Tech: Calculators & Decoders: RPM Calculator 3.27: 50 is @ 1433 RPM 4.10: 50 is @ 1797 RPM So now drive at 50 MPH in 5th...
  14. merc123

    Vibration at 90+ MPH

    so your saying the gears weren't put in right?
  15. merc123

    Vibration at 90+ MPH

    I musta missed that thread.
  16. merc123

    Vibration at 90+ MPH

    There wasn't anyone around to give me my time :D When I reinstalled I didn't mark the drive shaft (rookie mistake) but it had a yellow mark already on it assumingly from the Ford tech that did it the first time. I just lined the yellow mark back up. I do still have the damper weight on the...
  17. merc123

    3.73 vs. 4.10 - My actual experience

    If you any sort of long distance highway driving daily steer clear of the 4.10's... At this point I wish I had my 3.73's but hopefully I can find a Honda to drive back and forth to work.
  18. merc123

    Vibration at 90+ MPH

    I need new tires all the way around so that could be it too. Since I don't regularly hit 90 MPH I can't really see it as a big problem...especially with the new super speeder laws that add $200 to any ticket if you are over 85... I was thinking they were only about $200 for the...
  19. merc123

    3.73 vs. 4.10 - My actual experience

    Very true Tim. I'm still getting used to the throttle and clutch. I'm really jerky on starts at occasion because I can just about slip the clutch without any gas at all.
  20. merc123

    Vibration at 90+ MPH

    When I was at the track there was a strong vibration that came in at about 90 and stayed with it up until 100 or so. Once it got below 90 it stopped. It felt like it was shaking the whole rear end of the car but nothing in the steering and couldn't hear much driveline noise. Reading posts...
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