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NHRA Accepted Products
Manufacturer Phone Number Website
A-1 Performance 360-574-9966 www.a-1perf.com
ATI 877-298-5039 www.atiracing.com
B & M 818-882-6422 www.bmracing.com
BTE 800-626-1828 www.bteracing.com
Coan Racing 765-456-3957 www.coanracing.com
Cope Racing Transmissions 219-374-0100 www.coperacingtrans.com
General Motors (GM) www.gmperformanceparts.com
Hughes Performance 602-257-9591 www.hughesperformance.com
Lokar 877-469-7440 www.lokar.com
Mike's Transmission 661-723-0081 www.mikestransmission.com
Performance Automatic 301-963-8078 www.performanceautomatic.com
Pro Trans 661-940-7400
TCI Auto 888-776-9824 www.tciauto.com
Trans Dapt Performance 562-921-0404 www.tdperformance.com
Transmission Specialties 610-485-9110 www.transmission-specialties.com
NHRA Accepted
Locking Type Dipsticks (Auto Trans)
Updated January 4, 2010
Bold printed items designate recently added since last revision

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Thats looks to me more like a favorites list.Really do you think a tech inspector is going to carry around a list of manufacters in their pocket and pull every dip stick and check it to the list? He may look to see if it is a locking dipstick.How about all the Honda's and toyota's? If its a rule for safety then they need to have a SFI number and date.(of course then it will triple in cost until you can find them on ebay from other countries)Until then my free locking dip stick from the junk yard is as good as any of the above.If you say it isn't approved then prove it.Non of the above have been tested and been approved SFI. Like people have said before. I have never had fluid come up the dipstick.Out the front vent and yes and I fixed that.Most everyone that is worried about this race's on a liminted base in a car that the center of gravity is so low that it would take a fork lift to fip it over and reach a blazing 120 mph if that in a quarter mile.
I'm all for safety, but locking dipstick? How about a diaper for the tailshaft? I have seen way more fluid on the track from that.How about a tube and catch can for the vent?I have already done that.Maybe I should shut up NHRA will see this and come up with more rules.