2000 5.3, 4L60E swap questions

[mongocanfly]

You shouldn't have any trouble with the oil pan if its a truck pan..on the throttle cable you can scavage a pedal and cable off a earlier ls engine truck.. you just have to mount it where you need the pedal to be to match your old pedal location..taking some measurements from the pedal donor truck locate where the firewall hole needs to be for the new pedal,, drill a hole as close to the size of the hole in the donor truck as you can get and then break out a file and make yourself a square hole for the cable to "lock" in to the firewall and there it is..