Product details:

These drive shafts give your monster truck better driveline performance, less slop and more reliability. NOTE! This is for the 6s version TRX77076-4 NOTE: Instructions for installation are not included; if you do not know how to install the part, please ask your local dealer for assistance. Extra hardware, shims, or spacers may be required for some installations. Some parts may require permanent modification to the vehicle for fitment, and may eliminate certain OEM features. Some Integy-branded items may be only compatible with the vehicle's OEM parts but not with another Integy-branded item due to design language. For multiple-fitment items, some parts may not be used based on application.