There are two vacuum elbows used on 850 and later models that fit in a variety of different places. Our kit includes the elbows that most commonly get soft and fail over time. The elbow that is different sizes on each end is used primarily in two locations. First, the nipple located on the pass side of the intake manifold behind the power steering pump & second on the intake tube right after the mass air flow sensor. The elbow on the intake manifold is used on 850s that were built Oct 95 and later and the 70 series up to 2000 (check your vehicle to be sure). The other elbow is found on the air injection pump valve vacuum line and solenoid, four are used in that system, and also found on vacuum tree under the throttle bell crank cover. Look for code "232 LT FT" caused by elbow air leaks.
