1. Fitment: Fit for 4L60E 4L65E Transmission. Replacement for Hummer (H3) (H3T); Replacement for Fleetwood, Brougham; Replacement for Chevy Asto Van, Safari, etc.
2. OE Number: 352?2761, 77763?01, 749703K, 7776301, S749703K are the reference part numbers. Please double check the part number of your item to ensure perfect fit.
3. Reliable Performance: Providing significant improvement in performance, easy way to upgrade your vehicle and enjoy a more responsive and predictable driving experience.
4. Long Lasting: boost spring is made with iron materials that are built to last. It's designed to withstand use and extreme conditions, ensuring its longevity and durability.
5. Simple Operation: Transmission boost spring is easy to install and requires no professional skills or experience. Including 10pcs springs to meet your needs.

Specification:
Item Type: Boost Spring
Material: Iron
OE: 352-2761, 77763-01, 749703K, 7776301, S749703K
Fitment:
4L60E:Boost Spring, 3-4 (10 Per Bag) 1993 - 2018
4L65E:Boost Spring, 3-4 (10 Per Bag) 2001 - 2018
4L70E:Boost Spring, 3-4 (10 Per Bag) 2001 - 2018
TH700-R4:Boost Spring, 3-4 (10 Per Bag) 1982 - 1993
4L60E:Boost Spring, 3-4 (10 Per Bag) 1993 - 2018
4L65E:Boost Spring, 3-4 (10 Per Bag) 2001 - 2018
4L70E:Boost Spring, 3-4 (10 Per Bag) 2001 - 2018
TH700-R4:Boost Spring, 3-4 (10 Per Bag) 1982 - 1993
Such as:
Replacement for Hummer (H3)(H3T) 2006-2010 L5 3.7L V8 5.3L
Replacement for Rainer 2004-2007 L6 4.2L V8 5.3L
Replacement for , , EXT 1999-2007 V8 5.3L 5.7L 6.0L
Replacement for Fleetwood, Brougham 1993-1996 V8 4.9L 5.7L
Replacement for Limo 1993-1996 V8 4.9L 5.7L
Replacement for Chevy Asto Van, Safari 1995-2007 V6 4.3L
Replacement for 2001-2009 V8 5.3L
Replacement for , Jimmy 1993-2007 L4 2.2L L6 4.2L V6 4.3L V8 5.3L
Replacement for Envoy, Trailblazer 1993-2009 L4 2.2L L6 4.2L V6 4.3L V8 5.3L
Replacement