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4L SOHC 2V
underbody protection or even oil sump
This can make it difficult if you ever need to remove the spacer
Must be used with an MSD 6
SAE 9254V racing springs
B&M B&M Shift Improver Kit - GM TH350 Transmissions 30262 2025-honda-ridgeline-esi9289384 4L SOHC 2VThe B&M Shift Improver kits feature two options to recalibrating your 1968 1981 GM TH350 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 with easily chirping
