tanyourhide
Junior Member
- Joined
- Jun 5, 2016
- Posts
- 28
- Reaction score
- 5
- Location
- meridian, id
- First Name
- jesse
- Truck Year
- 1974
- Truck Model
- C10 pickup custom
- Engine Size
- 250 inline 6
Hey. Recently replaced my dead 400 sbc with 350 sbc. I retained the original flex plate for the th350 and put it on the new 350. I've had some trouble with shifting but now I have scraping and rattling coming from around the tranny at idle. An old guy told me that a flex plate from a 400 sbc won't work on a 350 sbc because the plate from a 400 sbc has weights on it to balance it while the 350 sbc is balanced internally. Is there truth to this? Could my flex plate be toast?
