Need Some Advice!

Discussion in 'Fox 5.0 Mustang Tech' started by demetri e, Jul 16, 2013.

  1. got a 88 gt 5.0 with a few mods (gt40 heads, cobra intake, 3.73 gears, 70mm throttle body, bbk cold air intake, shorty headers) , the clutch bearing is shot so while I fix that I'm gonna go with a new clutch and flywheel , the other prob is I'm having big issues with shifting on my t5 , syncros are shot and I can barely shift anymore, my big dilemma is should I rebuild? or go with a upgrade? obviously my money doesn't grow on trees otherwise I'd go with a tremec , but in. the future if I go with a better block and supercharger I might need a better trans
  2. You ever plan on running it at the track with slicks? Do a lot of power shifting? If the answer to either of these is no, just replace with a later model T5. I'd go with at least a '90-up model as they've got better torque rating than the previous years.
  3. Don't be so quick to think that the synchros are shot because of hard shifting. A worn out clutch can cause those symptoms too.
  4. the problem is idk yet about track there's a possibility I will I just want to do it right the first time, noobz not only does it grind in every gear, I have no use so much pressure to put it into every gear I feel like I'm gonna break the shifter
  5. Yep... I get ya. That can still be caused by a faulty clutch.
  6. Fix the clutch problem BEFORE you do anything with the transmission. Your problem symptoms are those of a clutch that does not disengage completely.

    Clutch adjustment
    Do the clutch adjustment first before considering any other problems. With the stock plastic quadrant and cable, pull up on the clutch pedal until it comes upward toward you. It will make a ratcheting sound as the self adjuster works. To release to tension of the stock quadrant, use a screwdriver to lift the ratchet paw up and out of engagement with the quadrant teeth.

    A binding clutch cable will make the clutch very stiff. If the cable is misrouted or has gotten too close to the exhaust, it will definitely bind. The binding common to adjustable cables is often due to misplacement of the adjusting nuts on the fork end of the cable. This will also cause the cable to wear and fray. Both nuts should be on the back side of the fork so that the domed nut faces the fork and the other nut serves as jam or locknut to the domed nut.

    Clutch pedal adjustment with aftermarket quadrant and cable: I like to have the clutch completely disengaged and still have about 1.5” travel left before the pedal hits the floor. This means that I have only about 1” of free play at the top before the pedal starts to disengage the clutch. Keep in mind that these figures are all approximate. When properly adjusted, there will not be any slack in the clutch cable. You will have 4-15 lbs preload on the clutch cable.
    Loosening the cable adjustment nut (throwout bearing arm moves to the rear of the car) moves the disengagement point towards the floor.
    Tightening the cable adjustment nut (throwout bearing arm moves to the front of the car) moves the disengagement point towards the top of the pedal.
    The quadrant needs to be replaced if you use any type of aftermarket cable or adjuster. My preference is a Ford Racing quadrant, adjustable cable and Steeda firewall adjuster. The adjustable Ford Racing cable is just as good as the stock OEM cable. It allows a greater range of adjustment than a stock cable with a aftermarket quadrant and firewall adjuster. Combined with the Steeda adjuster, it lets you set the initial cable preload and then fine tune the clutch engagement point to your liking without getting under the car.

    Using a stock OEM cable, firewall adjuster and a single hook quadrant may result in not having any free pedal travel before the clutch starts to disengage. I found this out the hard way.
    See Summit Racing - High Performance Car and Truck Parts l 800-230-3030 for the following parts.
    Ford Racing M-7553-B302 - Ford Racing V-8 Mustang Adjustable Clutch Linkage Kits - Overview - Cable and quadrant assembly $90
    The Ford Racing Adjustable cable is available as a separate part:
    Clutch Cable, Adjustable, Ford, Mercury, 5.0L, Kit FMS-M-7553-C302_HE_xl.jpg

    Steeda Autosports 555-7021 - Steeda Autosports Firewall Cable Adjusters - Overview - Steeda firewall adjuster. $40

  7. Or a faulty clutch cable. If you have probs in every gear I doubt its your trans.
  8. Nvm jrichker beat me to it.