Are there any trans tunnel mods needed in a B-body for the 518 trans?
I know it's a pretty large amount of work in an A-body.

Even though the Gearvendors is only a .78 overdrive I think it would be good enough for me and an easier install. And I like how it will handle full power for an occasional highway brawl.

1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual