Drivetrain Bellhousing Questions

[Rcdgl]

Asking a question because we ran into a bellhousing issue when trying to put my new engine on an engine dyno.

I bought a Ford Racing T5 bellhousing straight from Summit. It turned out the trans front bearing retainer pilot hole diameter in this is slightly larger than an older Ford stick shift trans, think toploader fourspeeds.
Shop located an older one and everything worked.

Anyone else run into this? Do TKOs need a non T5 bell?

 

[jrichker]

Tremec 3550, TKO, TKO 500 & TKO 600 use an older Top loader bellhousing which is a different bellhousing from the T5.

 

[Mustang5L5]

Yup, the run the older D9 bellhousing