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Trans noise when in 1st,2nd,3rd,5th,and reverse?


BroncoII93

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Location
Mississippi
Vehicle Year
88
Make / Model
Ford Bronco II
Transmission
Manual
I have an 88 bronco II that I just completed a trans swap on. When I replaced it I also replaced the gear oil, whole clutch, slave, and master cylinder. However, after I got it on the road it started making this horrible noise when it's in gear except for 4th. It sounds like the trans is eating itself in all other gears. What could be causing this noise? The trans is a FM-146 with a 1350 manual shift t-case.
 


mkyhmltn

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U.S. Military - Active
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Colorado Springs, CO
Vehicle Year
1989
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Ford Bronco II
Engine Type
2.3 (4 Cylinder)
Engine Size
2.3
Transmission
Manual
2WD / 4WD
4WD
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0
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0
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235/75/15
If it is doing it in every gear except 4th it sounds like the pocket bearing is bad.
 

19Walt93

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3"
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235/55R16
My credo
If you don't have time to do it right will you have time to do it over?
Seen it many times with Mazda/ Toyo kogo transmissions. I'd replace all the bearings because they've all run in fluid with metal particles floating in it. Mitsubishi transmissions were worse, if you shifted to reverse too quickly after depressing the clutch the gears were still spinning and the teeth on the 2 piece, welded together gear would break off. Then reverse would become your second neutral. More superior Japanese technology.
 

BroncoII93

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Mississippi
Vehicle Year
88
Make / Model
Ford Bronco II
Transmission
Manual
Thanks for the help. I was afraid it was going to be something like that. I have another trans that I'll get checked out first and if it's good I'll just have to do another swap.
 

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