When building a racing Powerglide, it is necessary to plug the hole left by the vacuum modulator. Sonnax now offers the vacuum modulator plug 28738-01K for the GM Powerglide transmission.
FITS ALUMINUM POWERGLIDE EQUIPPED:
CHEVROLET '62-'73
PONTIAC '70-'73
PONTIAC TEMPEST T6 '64
VACUUM MODULATOR PLUG KIT
ANODIZED ALUMINUM CONSTRUCTION
INCLUDES 3543L GASKET
FOR HIGH PERFORMANCE & RACING APPLICATIONS
SONNAX 28738-01K
PHOTO SHOWS ACTUAL MODULATOR PLUG KIT
LIMITED AVAILABILITY
FREE SHIPPING TO ALL 50 U.S. STATES & PUERTO RICO!