1990 KW W900L

Good morning all, thanks for all the GREAT help on my revival project!!!! I'm up in age and not computer literate, don't know how to put pic in thread. Need more help. Can anyone tell me if original exhaust system ran over or under the frame on this truck? Vin # 2XKWDB9X9LM555647. It's over the frame now but looks jerry rigged bad from elbows back under, would like to run 7" below frame if I can get numbers for proper elbows and Y pipe, drop from turbo ect. All suggestions appreciated.

 

Thanks Clay, Bean posted a pic of his 94 w/ sleeper, was over frame. My 90 has sleeper removed and converted to D Cab. Want to go back right. Mine has more space between fuel tank and steps so I wasn't sure. TKS again!!!

 

Thanks, now, I just need elbow and Y part numbers to cross over to Lincoln Chrome or DynaFlex or Trux to get the right fit.

 

Tremendous thought. Iwouldn't have thought about the direct floor heat. Thanks a Trillion.

 

I will ask Michelle about going under the frame, thanks to " special- k's response. Special Thanks to you both, and keep up the good work. I never dreamed I would have such access to so much knowledge. I only hope my 40 years of Pete's can be as helpful to someone on this forum as you guy's have been for me!!