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Old Nov 21, 2022 | 12:21 AM
  #1  
GGALLIN1776's Avatar
GGALLIN1776
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Mountain Pass
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From: CT
Trans swap

Question about the 4r100 behind the 7.3 (or 6.0), does it have the same bellhousing as the 5.4 version? I'd like to get a beefier version that will hold out.

I went to check my fluid today after hearing what sounded like a low, hollow groan every so often & there was more glitter on the dipstick than fluid. 165k on it & I personally haven't added 100 miles to that.

Also, anyone know of a trustworthy rebuilder in CT? If prices are significantly cheaper going with a rebuild rather than a reman, that's the route I'll have to take. Either way it's sadly cheaper than finding another vehicle even with a cracked frame.
 
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Old Nov 21, 2022 | 07:49 AM
  #2  
Mark Kovalsky's Avatar
Mark Kovalsky
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The 4R100 was never behind a 6.0L.

The 4R100 behind a 7.3L has a different bellhousing bolt pattern than a 5.4L trans. You can put the 7.3L internals in a 5.4L case.
 
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Old Nov 21, 2022 | 08:30 AM
  #3  
STOFFERJ's Avatar
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Originally Posted by GGALLIN1776
Question about the 4r100 behind the 7.3 (or 6.0), does it have the same bellhousing as the 5.4 version? I'd like to get a beefier version that will hold out.

I went to check my fluid today after hearing what sounded like a low, hollow groan every so often & there was more glitter on the dipstick than fluid. 165k on it & I personally haven't added 100 miles to that.

Also, anyone know of a trustworthy rebuilder in CT? If prices are significantly cheaper going with a rebuild rather than a reman, that's the route I'll have to take. Either way it's sadly cheaper than finding another vehicle even with a cracked frame.

might just skip the BS and contact A1 transmission in Georgia Chris builds the best 4r100’s
 
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