4 speed to 4 speed od clutch chatter

So I have a 4 speed in my duster(2.66 I think first gear) and it works flawless. It is a 340 with a new flywheel, mcleod clutch, new z bar bushings, motor/tranny mounts, u joints and 3.55 gears. I swapped the 4 speed over yesterday to a od 4 speed I picked up. I had the od 4 speed apart and bearings look nice shape, put new synchro, 3 tabs and 4 new springs in it. The pilot bushing I use in the roller type that fits in the converter bore.

The 4 speed od with matching bell. When cold has a bit of chatter taking off easy in 1st. Once everything is warm the chatter is so bad I can't even get the car to move in first. Either riding it high rpm or even low shakes entire dash. If I take off in second I can get the car to move by riding the clutch(it is smooth doing it like that). The input bearing has very little play, the main shaft and rollers looked prefect shape.

Today I pulled the od 4 speed back out, checked the clutch for oil(it is spotless clean with no heat spots) and re used the od bellhousing. I used an a230 3 speed retainer on my original 4 speed that is a bit over 5in to match the bellhousing. I figured maybe bellhousing had something to do with it. The od bell with large retainer on my original 4 speed does not have one shake or chatter no matter what I do

Has anyone ever had any issue like this.. Is it from the different 1st ratio.