B&M Shift Improver Kit - GM TH400/475 Transmissions - 20261 water-pumps The APR insert is created

The APR insert is created from thick

1997-2001 Mercury Mountaineer

Accommodates all factory OE components

6 V8 1973 Mercury Montego MX 460/7

6 V8 1974 - 1976 Chevrolet Monte Carlo 400/6

B&M Shift Improver Kit - GM TH400/475 Transmissions - 20261 water-pumps The APR insert is createdOverview: The B&M Shift Improver kits feature two options to recalibrating your 1988 1994 GM TH400 and TH475 automatic transmissions. First is the HEAVY DUTY set up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET STRIP set up. Be warned, this will deliver firm positive shifts you will feel, along