From Andy Zook's 5M swap:

"I have also heard that this swap will only work in trucks with a solid front axle (as opposed to IFS) because of clearance issues with the oil pan. While this may be true with the front-sump pan that is originally on the 5M, I believe that swapping the original oil pan for one from a 7M-GE (MKIII Supra engine) could solve this issue. The 7M has the sump located in the rear of the engine which may, or may not provide enough clearance for the IFS components. The sump on the oil pan also looks like it will interfere with crossover steering setups. I have been researching the possibilities of a different oil pan for this reason."