The B&M® Shift Improver kits™ present two distinct options for recalibrating your 1968-1981 GM TH350 automatic transmissions. The first option is the HEAVY DUTY setup, delivering firm positive shifts without compromising driver comfort, thereby enhancing performance in all street vehicles. This is an excellent choice for performance street driving or towing applications. The second option is our STREET/STRIP setup. It comes with a word of caution – expect firm positive shifts that you can feel, and it might even result in tire chirping when shifting somewhat aggressively. This setting is recommended for high-performance street/strip use or competitive events where you desire the hardest, quickest shifts achievable from a shift improver kit. Note: This kit does not fit GM TH350C with lock-up. Use part# 30235 for TH350C transmissions.
Features:
- Suitable for Stock or Modified Automatic Transmissions
- Ideal for RV, Towing, or Street/Strip Use
- Eliminates Soft and Sluggish Shifts
- Over 65 Years of B&M Quality
- Eliminates Shift Overlap
- Provides Crisp Shifts
- Easy Installation
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
