High RPM/Speed Trans. Leak - Pontiac GTO Forum
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post #1 of 6 (permalink) Old 09-10-2009, 11:32 PM Thread Starter
 
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High RPM/Speed Trans. Leak

I have a modded '06 GTO and am having trouble with the transmission on high gear, high rpm pulls. Had it do it once in 3rd gear and again tonight in 5th gear. Tonight I had the car in 5th gear on the highway around 2500revs, laid into the throttle and ran it out to around 5k revs (maybe a bit more). As I was climbing in the Rev range, I saw a trail of white smoke behind me. I pulled over and saw the floorpan as well as the collector area of the headers dripping with Trans fluid. I am hoping someone has some sort of answer as to what might be causing this.

Car has 507RWHP/465RWTQ
BMR Fab Solid Driveshaft
Kaaz LSD, 3.92 Gears
BMR Halfshafts
Textralia Clutch
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post #2 of 6 (permalink) Old 09-11-2009, 06:37 AM
 
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Maybe the tailshaft seal is leaking? I would look there first especially since you have an aftermarket driveshaft.

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post #3 of 6 (permalink) Old 09-11-2009, 10:10 AM Thread Starter
 
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Tailshaft seal had been replaced with a new OEM seal and still leaks. Slip yoke on driveshaft has been replaced as well.
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post #4 of 6 (permalink) Old 09-13-2009, 07:36 AM
 
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Front seal??



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post #5 of 6 (permalink) Old 09-18-2009, 01:37 PM
 
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See if any of the gaskets are leaking.
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post #6 of 6 (permalink) Old 09-18-2009, 05:23 PM Thread Starter
 
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The B&M short shifter bolts stripped and allowed the shifter to lift up and open the top of the tranny up to leak at high RPM's. A few helicoils and some elbow grease and all is well. Thanks everyone for your help.
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