Harsh shift in 4th
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4wd High
Joined: Jul 2017
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Harsh shift in 4th
Hey everyone! I have a 2018 F250 6.7 with 108k. Transmission fluid/filter was changed at 95k with hardly any metal shavings on the magnet. It was put on a diet at 85k miles by a Canadian company A**P and I switched to slow 6.7 recently. No matter the power on a single level with different trans it has a hard jolt into 4th gear under heavy acceleration. Regular driving is somewhat firm with no shift flare. On a 4” lift and 35’s. No traction bars. Any ideas? Any help much appreciated!!!
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Pastmaster
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Mar 26, 2002 08:59 PM
