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Hard shifting transmission

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Old Oct 18, 2017 | 01:11 AM
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John Snyder
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Hard shifting transmission

my 1999 F350 Powerstroke transmission has been rebuilt. The mechanic said he put better aftermarket parts in and stronger springs. I notice from time to time when it shifts down and then back up, when pulling a hill, it slams up hardwould that possibly be because of the stronger springs he installed?
 
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Old Oct 18, 2017 | 07:34 AM
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Mark Kovalsky
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Yes, that's possible, even likely.
 
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Old Oct 18, 2017 | 07:47 AM
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sunuvabug
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I too just had my 4r100 transmission rebuilt. The shop also put in a new torque converter and a "mild" upgrade kit kit plus the most up-to-date updates for my transmission. It shifts harder/crisper than before under certain conditions. When I returned for my 1 month follow-up check (driveability, code scan and leak inspection etc.), the shop owner road tested it again and said it was performing as designed. Hope this helps.
 
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Old Oct 18, 2017 | 08:01 PM
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Originally Posted by Mark Kovalsky
Yes, that's possible, even likely.
Thanks. I was hoping to hear that
 
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Old Oct 18, 2017 | 08:04 PM
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Originally Posted by sunuvabug
I too just had my 4r100 transmission rebuilt. The shop also put in a new torque converter and a "mild" upgrade kit kit plus the most up-to-date updates for my transmission. It shifts harder/crisper than before under certain conditions. When I returned for my 1 month follow-up check (driveability, code scan and leak inspection etc.), the shop owner road tested it again and said it was performing as designed. Hope this helps.
Thanks. Sounds like I was just a little worried for something normal.
 
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