4L80E 4L85E TRANSMISSION BOOST VALVE & SLEEVE KIT, SELF REGULATING LIMITS EPC 95-105 PSI FITS '91-'08 BY SONNAX SONNAX $119.77 $139.95 Add to Cart
4L80E 4L85E TRANSMISSION Lube Regulated Pressure Regulator Valve Kit BY SONNAX FITS '91+ SONNAX $118.77 $134.95 Add to Cart
4L80E 4L85E TRANSMISSION: SONNAX O-RING STYLE BOOST VALVE & SLEEVE KIT FITS '91-'08 SONNAX $36.77 $45.95 Add to Cart
4L80E 4L85E TRANSMISSION: SONNAX FACTORY STYLE BOOST VALVE & SLEEVE KIT FITS '91+ SONNAX $29.88 $39.95 Add to Cart
4L80E 4L85E TRANSMISSION VALVE BODY GASKET SET UPPER & LOWER FITS '91-'08 TRANSTEC / CORTECO $14.77 $25.95 Add to Cart
4L80E 4L85E TRANSMISSION LINE PRESSURE BOOSTER KIT SONNAX 4L80E-LB1 FITS '91+ SONNAX $51.77 $58.99 Add to Cart
Sale 4L80E 4L85E TRANSMISSION Shift Kit® TRANSGO® SK®4L80E WITH BOOST VALVE FITS '91-'09 TRANSGO $109.88 $99.77 $129.95 Add to Cart
4L80E 4L85E TRANSMISSION BEARING KIT BY KOYO-TORRINGTON FITS '91-'08 KOYO BEARINGS $43.77 $49.99 Add to Cart