Q: How is the Drive Shaft and Universal Joint Constructed and Maintained on 2005-2009 Toyota Tacoma?
A: The driveshaft is of a tubular shape and comes in a single piece pertaining to regular cab variants, or in a two-piece variant when it comes to the extended cab variants of the pick-up. It is extremely delicate when it is put into production and when replacing universal joints it would be wise to use general caution; getting it done by a dealership or a specialty shop is usually recommended. If the joints are replaced independently, then it is necessary also to orient each yoke regarding the opposite one and not to drop the assembly during repairing. In 2WD models, there is a more complex structure; at the front part of the 2WD models, there is a splined yoke that is known as the slip yoke or the sleeve yoke to accommodate the sliding of the driveshaft into the transmission case, while an oil seal is incorporated to avoid leaking of the fluid and the entry of dirt into the vehicle. For 4WD models, the driveshafts are linked to the transfer case through the flange yoke; when pulling out a driveshaft, the companion flange can be removed to separately replace the companion seals. The undercoating and mud should be avoided on the driveshaft; apart from that cleaning and checking for damages frequently is advised, when the small weights for balancing are to be fixed securely on the shafts. Any sound or feel of vibration while driving implies driveshaft problems; frequently, a road test can be used to conclude the root of the problem; if one is suspected of being a problem, a check on the driveline is recommended.