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B&M Shift Improver Kit, GM TH350 Transmissions 30262

B&M Shift Improver Kit, GM TH350 Transmissions 30262
B&M Shift Improver Kit, GM TH350 Transmissions 30262
$95.99 ea
NEWARRIVING SOONEstimated Ship Date 01/13/2025 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 12/26/2024
Model: 2038494
IMPORTANT: Electrical items are covered by a 30 day EXCHANGE ONLY WARRANTY. There are no returns or refunds on such items.
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
The 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 the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit. Note: Does not fit GM TH350C with lock-up. Use part# 30235 for TH350C transmissions.
Features:
  • For Stock or Modified Automatic Transmissions
  • Perfect 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
Fits 1968-1981 GM TH350 and M38 automatic transmissions. Does not fit TH350C lockup (use part# 30235 for TH350C)
Installation Notes:
Fits 1968-1981 GM TH350 and M38 automatic transmissions. Does not fit TH350C lockup (use part# 30235 for TH350C)

About B&M Racing

B&M® specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.

Downloads:

Download Name File Size
bm_warranty.pdf87.47KB
30262_instructions.pdf3.37MB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Blazer 1969 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet Blazer 1970 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet Blazer 1971 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet Blazer 1972 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet Blazer 1973 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet Blazer 1974 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1969 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1970 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1971 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1972 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1973 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1974 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 Suburban 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C10 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1969 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1970 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1971 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1972 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1973 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1974 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 Suburban 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C20 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet C30 1975 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet C30 1976 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet C30 1977 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet C30 1978 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet C30 1979 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet C30 1980 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet C30 1981 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet El Camino 1969 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1970 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1971 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1972 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1973 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1974 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet El Camino 1980 5.0L / 305 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1969 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1970 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1971 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1972 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1973 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1974 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 Suburban 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K10 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1969 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1970 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1971 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1972 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1973 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1974 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 Suburban 1981 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K20 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K30 1977 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet K30 1978 6.6L / 400 / V8 For TH-350 Transmission
Chevrolet K30 1979 6.6L / 400 / V8 For TH-350 Transmission
Chevrolet K30 1980 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet K30 1981 7.4L / 454 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1975 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1976 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1977 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1978 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1979 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1980 5.7L / 350 / V8 For TH-350 Transmission
Chevrolet K5 Blazer 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC C15 Suburban 1975 For TH-350 Transmission
GMC C15 Suburban 1976 For TH-350 Transmission
GMC C15 Suburban 1977 For TH-350 Transmission
GMC C15 Suburban 1978 For TH-350 Transmission
GMC C15/C1500 Pickup 1969 For TH-350 Transmission
GMC C15/C1500 Pickup 1970 For TH-350 Transmission
GMC C15/C1500 Pickup 1971 For TH-350 Transmission
GMC C15/C1500 Pickup 1972 For TH-350 Transmission
GMC C15/C1500 Pickup 1973 For TH-350 Transmission
GMC C15/C1500 Pickup 1974 For TH-350 Transmission
GMC C15/C1500 Suburban 1970 For TH-350 Transmission
GMC C15/C1500 Suburban 1971 For TH-350 Transmission
GMC C15/C1500 Suburban 1972 For TH-350 Transmission
GMC C15/C1500 Suburban 1973 For TH-350 Transmission
GMC C15/C1500 Suburban 1974 For TH-350 Transmission
GMC C1500 Suburban 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC C1500 Suburban 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC C1500 Suburban 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC C1500 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC C1500 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC C1500 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC C15 1975 For TH-350 Transmission
GMC C15 1976 For TH-350 Transmission
GMC C15 1977 For TH-350 Transmission
GMC C15 1978 For TH-350 Transmission
GMC C25 Suburban 1975 For TH-350 Transmission
GMC C25 Suburban 1976 For TH-350 Transmission
GMC C25 Suburban 1977 For TH-350 Transmission
GMC C25 Suburban 1978 For TH-350 Transmission
GMC C25/C2500 Pickup 1969 For TH-350 Transmission
GMC C25/C2500 Pickup 1970 For TH-350 Transmission
GMC C25/C2500 Pickup 1971 For TH-350 Transmission
GMC C25/C2500 Pickup 1972 For TH-350 Transmission
GMC C25/C2500 Pickup 1973 For TH-350 Transmission
GMC C25/C2500 Pickup 1974 For TH-350 Transmission
GMC C25/C2500 Suburban 1970 For TH-350 Transmission
GMC C25/C2500 Suburban 1971 For TH-350 Transmission
GMC C25/C2500 Suburban 1972 For TH-350 Transmission
GMC C25/C2500 Suburban 1973 For TH-350 Transmission
GMC C25/C2500 Suburban 1974 For TH-350 Transmission
GMC C2500 Suburban 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC C2500 Suburban 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC C2500 Suburban 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC C2500 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC C2500 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC C2500 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC C25 1975 For TH-350 Transmission
GMC C25 1976 For TH-350 Transmission
GMC C25 1977 For TH-350 Transmission
GMC C25 1978 For TH-350 Transmission
GMC C35/C3500 Pickup 1969 For TH-350 Transmission
GMC C35/C3500 Pickup 1970 For TH-350 Transmission
GMC C35/C3500 Pickup 1971 For TH-350 Transmission
GMC C35/C3500 Pickup 1972 For TH-350 Transmission
GMC C35/C3500 Pickup 1973 For TH-350 Transmission
GMC C35/C3500 Pickup 1974 For TH-350 Transmission
GMC C3500 1979 7.4L / 454 / V8 For TH-350 Transmission
GMC C3500 1980 7.4L / 454 / V8 For TH-350 Transmission
GMC C3500 1981 7.4L / 454 / V8 For TH-350 Transmission
GMC C35 1975 For TH-350 Transmission
GMC C35 1976 For TH-350 Transmission
GMC C35 1977 For TH-350 Transmission
GMC C35 1978 For TH-350 Transmission
GMC Caballero 1978 For TH-350 Transmission
GMC Caballero 1979 For TH-350 Transmission
GMC Caballero 1980 For TH-350 Transmission
GMC Jimmy 1970 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1971 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1972 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1973 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1974 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1975 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1976 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1977 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1978 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC Jimmy 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC K15 Suburban 1975 For TH-350 Transmission
GMC K15 Suburban 1976 For TH-350 Transmission
GMC K15 Suburban 1977 For TH-350 Transmission
GMC K15 Suburban 1978 For TH-350 Transmission
GMC K15/K1500 Pickup 1969 For TH-350 Transmission
GMC K15/K1500 Pickup 1970 For TH-350 Transmission
GMC K15/K1500 Pickup 1971 For TH-350 Transmission
GMC K15/K1500 Pickup 1972 For TH-350 Transmission
GMC K15/K1500 Pickup 1973 For TH-350 Transmission
GMC K15/K1500 Pickup 1974 For TH-350 Transmission
GMC K15/K1500 Suburban 1969 For TH-350 Transmission
GMC K15/K1500 Suburban 1970 For TH-350 Transmission
GMC K15/K1500 Suburban 1971 For TH-350 Transmission
GMC K15/K1500 Suburban 1972 For TH-350 Transmission
GMC K15/K1500 Suburban 1973 For TH-350 Transmission
GMC K15/K1500 Suburban 1974 For TH-350 Transmission
GMC K1500 Suburban 1979 For TH-350 Transmission
GMC K1500 Suburban 1980 For TH-350 Transmission
GMC K1500 Suburban 1981 For TH-350 Transmission
GMC K1500 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC K1500 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC K1500 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC K15 1975 For TH-350 Transmission
GMC K15 1976 For TH-350 Transmission
GMC K15 1977 For TH-350 Transmission
GMC K15 1978 For TH-350 Transmission
GMC K25 Suburban 1975 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 Suburban 1976 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 Suburban 1977 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 Suburban 1978 5.7L / 350 / V8 For TH-350 Transmission
GMC K25/K2500 Pickup 1969 For TH-350 Transmission
GMC K25/K2500 Pickup 1970 For TH-350 Transmission
GMC K25/K2500 Pickup 1971 For TH-350 Transmission
GMC K25/K2500 Pickup 1972 For TH-350 Transmission
GMC K25/K2500 Pickup 1973 For TH-350 Transmission
GMC K25/K2500 Pickup 1974 For TH-350 Transmission
GMC K25/K2500 Suburban 1969 For TH-350 Transmission
GMC K25/K2500 Suburban 1970 For TH-350 Transmission
GMC K25/K2500 Suburban 1971 For TH-350 Transmission
GMC K25/K2500 Suburban 1972 For TH-350 Transmission
GMC K25/K2500 Suburban 1973 For TH-350 Transmission
GMC K2500 Suburban 1979 For TH-350 Transmission
GMC K2500 Suburban 1980 For TH-350 Transmission
GMC K2500 Suburban 1981 For TH-350 Transmission
GMC K2500 1979 5.7L / 350 / V8 For TH-350 Transmission
GMC K2500 1980 5.7L / 350 / V8 For TH-350 Transmission
GMC K2500 1981 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 1975 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 1976 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 1977 5.7L / 350 / V8 For TH-350 Transmission
GMC K25 1978 5.7L / 350 / V8 For TH-350 Transmission
GMC K35/K3500 Pickup 1970 For TH-350 Transmission
GMC K35/K3500 Pickup 1971 For TH-350 Transmission
GMC K35/K3500 Pickup 1972 For TH-350 Transmission
GMC K35/K3500 Pickup 1973 For TH-350 Transmission
GMC K35/K3500 Pickup 1974 For TH-350 Transmission
GMC K3500 1979 For TH-350 Transmission
GMC K3500 1980 For TH-350 Transmission
GMC K3500 1981 For TH-350 Transmission
GMC K35 1977 For TH-350 Transmission
GMC K35 1978 For TH-350 Transmission
GMC Sprint 1971 For TH-350 Transmission
GMC Sprint 1972 For TH-350 Transmission
GMC Sprint 1973 For TH-350 Transmission
GMC Sprint 1974 For TH-350 Transmission
GMC Sprint 1975 For TH-350 Transmission
GMC Sprint 1976 For TH-350 Transmission
GMC Sprint 1977 For TH-350 Transmission

Specifications:

Automotive Item Grade High Performance
California Proposition 65 Chemical Name Cadmium and cadmium compounds
California Proposition 65 Required Yes
Emission Code 5
Gasket Included Yes
Instructions Included Yes
Part Type Automatic Transmission Shift Kit
Product Type Automatic Transmission Valve Body Kit
Proposition 65 www.P65Warnings.ca.gov
Warranty Time 12 Months

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B&M Shift Improver Kit, GM TH350 Transmissions 30262:

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