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Sean Marconette · 11-30-2015, 05:35 PM

Unless it came with hydraulic, it is not allowed. With a performance clutch a mechanical linkage is best for consistant air gap settings.

For the trans, straight out of the rulebook, "OEM or NHRA accepted aftermarket transmissions having same number of forward speeds (O.D. gear not required) as original, and reverse, may be used."

This is where it is a grey area, as cars originally with power glides can now have 3 speed automatics, per the rulebook

For clarification on the trans contact your local tech director, as it is not black and white for a manual trans like it is with the auto in the rulebook.

Sean

11-30-2015, 05:35 PM	#2
Sean Marconette Senior Member Join Date: Mar 2006 Posts: 977 Likes: 787 Liked 274 Times in 76 Posts	Re: 3sp to 4sp manual Unless it came with hydraulic, it is not allowed. With a performance clutch a mechanical linkage is best for consistant air gap settings. For the trans, straight out of the rulebook, "OEM or NHRA accepted aftermarket transmissions having same number of forward speeds (O.D. gear not required) as original, and reverse, may be used." This is where it is a grey area, as cars originally with power glides can now have 3 speed automatics, per the rulebook For clarification on the trans contact your local tech director, as it is not black and white for a manual trans like it is with the auto in the rulebook. Sean __________________ Sean Marconette 84 Mustang 5060 SS/N Last edited by Sean Marconette; 11-30-2015 at 05:39 PM.