4R100 rebuild gone south - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 1 (permalink) Old 03-16-2015, 11:48 PM Thread Starter
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Join Date: Mar 2015
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4R100 rebuild gone south

My son had a guy working out of his garage rebuild his 4R100 in his 200 f250 7.3. The guy replaced all the clutch packs, steels, a spring (it was a pink spring he put in a blue), and the front pump.
When he installed the tranny, it is hard to get to shift from 1-2 or 2-3, and when it does shift, it "binds" badly both from 1-2 and 3-4.
Could this be the different color spring? Clutches too tight (he had trouble getting them all in)? A check ball in the wrong position? (he wasn't using a manual)
We are not sure if we want him to try to "make it right" as he is clueless to what is happening.
I rebuild 4l60e's, but wasn't comfortable taking on a 4R100- hell I probably could have done a better job!

2000 F250 7.3 crew cab 4x4
2001 F350 7.3 crew cab dually 4x4
1997 F250 7.3 ex cab 4x4
1997 F350 7.3 dually flatbed 4x4
1988 F250 7.3 idi ex cab 4x4
1985 F250 6.9 ex cab 4x4
I fix 6.0's that no one here wants to deal with
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