v5m31 is what's behind the 4m40 and 3.5 even some later 4d56's i'm not sure bout the current direct injected diesel's
the 4m40 version has the tractor low first gear.
landraider is correct these trannys are beefy but not quick shifting tranny's and the o/d's are short.

here's moby dick(v5m31)
[Linked Image]


89 2 dr turbo diesel
89/88 "Backwoods sas"