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  #1  
Old 11-01-2004, 12:19 AM
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R0AD73RUNNER R0AD73RUNNER is offline
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Default Clutch Pedal Over center spring question

I'm putting my 4spd pedals in my 73 runner. Is this over center spring different between 68-70 B-bodies and 71-74 b-bodies? I'm putting my spring in my car, and it certainly doesn't look like it will reach even with extreme spring stretch. Thinking it maybe it is from the 68-70 b-bodies and the reach is shorter on those pedal assemblies? Thanks for any help.
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Old 11-01-2004, 06:50 PM
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Anyone help??? thanks

Carey
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  #3  
Old 11-01-2004, 07:43 PM
H&Bracing
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id look for another place to hook the spring up to and as for the length i think you anserd your self on that or you can call year one they might know
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Old 11-01-2004, 11:40 PM
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in a word, yes.
pedal and spring assemblies are similar in basic design,
but very different in terms of dimensions, etc.
best bet is to find the proper spring.
if you post a photo of yours, i can tell you if it is correct.
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Old 11-02-2004, 12:05 AM
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MoparMarcIdaho MoparMarcIdaho is offline
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If you have decided to run a cenerforce or any other diaphram type clutch,dont install it because it will hang up on speedshifts.Costly mistake.
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Old 11-02-2004, 12:38 AM
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Biggrin

Cenerforce or any other diaphram type clutch wont have the holding power of the stock type Borg and Becks and are NOT recommended by Mopar. I would never run such a crappy clutch in one of my Mopars. Stick with the best and run the Borg and Beck and find the correct spring for oyur set up.
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Old 11-02-2004, 02:41 AM
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don't know about the centerforce clutches,
but i ran a mcleod diaphragm pressure plate
and billet steel flywheel behind my 440
with excellent results. there are some nice
advantages to running a diaphragm - especially
if your ride isn't seeing serious race duty.
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Old 11-02-2004, 08:41 AM
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Biggrin

There are no advantages to running a diaphragm clutch other than it is easier to press, but that means less holding pressure. Mopar does NOT recommend them in even a stock street car.
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Old 11-02-2004, 09:58 AM
H&Bracing
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daaaaaaam look at the big brain on dwc and as usual he is right again
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Old 11-02-2004, 10:52 AM
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Quote:
Originally Posted by H&Bracing
daaaaaaam look at the big brain on dwc and as usual he is right again
If that is sarcasm, it doesn't add anything to the thread.
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  #11  
Old 11-02-2004, 01:04 PM
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dwc,
do you know why mopar is against the diaphragm design?
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Old 11-02-2004, 04:42 PM
John Kunkel John Kunkel is offline
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If you look back through history you'll find lots of stuff that Mopar "doesn't recommend" and you'll also find lots of Mopars happily using that stuff. You'll also find that Mopar routinely flip-flops on those recommendations.

Many folks, myself included, have used Centerforce clutches behind high powered cars and love them.
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Old 11-02-2004, 05:10 PM
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Exclamation

On the borg and beck setup the spring pressure decreases at it wears and the diaphram type supossedly stays consistant.I drovea friends 69 runner this summer with a centerforce and it sticks on the floor when you try to speed shift.Removal of the underdash spring will cure this Im told.
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Old 11-02-2004, 10:56 PM
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Biggrin

yeah, lose the o/c spring. not necessary, and actually
a bad thing with the diaphragm setup.

diaphragms also require a bit more care in their adjustment.
once you adjust your pressure plate air gap for correct disengagement,
it's no worries. borg and beck design are more forgiving in this area.

the diaphragm design got a bad rap decades ago, when the
early designs were tried for competition / heavy street duty,
and didn't do well. enough promise was shown by the design
that many aftermarket companies have poured much r+d into
developing diaphragms which do perform quite well.

that said, i wouldn't use one in an extreme high-rpm race environment.

just some thoughts and personal experience.
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