2. Frame

Later model GM G bodies had additional bracing on the driver’s side of the frame for mounting the TH200-4R crossmember (compare Figure 2‑1 and Figure 2‑2). Other enthusiasts have published their method of installing the T5 in 1978-1988 GM A/G bodies that take advantage of the newer bracing. However, my method of installing the T5 uses the mounting points that exist on all model years as illustrated in Figure 2‑2.

Figure 2‑1: 1983 Driver’s Side Frame (note lack of TH200-4R mounting point)

Figure 2‑2: T5 Crossmember Mounted to 1986 Frame Using Generic Mounting Point