TH350 vs TH400 Torque Converter Cover Comparison

by George Nenadovich



The top torque converter cover is from a TH350 and white arrow shows the wide metal section while the lower cover has a thin edge in the same area.


White arrow in this picture shows thinner metal width for TH400 cover...also note the cover has a large semi-circular arc cut-out to clear the crank flange.


White shows the thin metal width for a TH400 cover compared to the TH350 on the left and red arrow indicates steel gusset to strengthen the area.

You can make a TH350 fit a TH400 but will require you to remove some metal and also cut an arc out to clear the crank flange.