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np435 shifting problems

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Old Nov 21, 2005 | 06:22 PM
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78 Ranger
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np435 shifting problems

i have 72 np435 in my 78 ranger and when i really come on to it in second gear it won't shift to third but it works fine just driving normal. what could be wrong with it

also what years did they have the np 435 4 speeds in the trucks
 
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Old Nov 22, 2005 | 03:16 PM
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Change the gear oil with some Coastal 75W-90. It solved all my problems. Smooth as silk
 
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Old Nov 22, 2005 | 04:18 PM
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Originally Posted by 78 Ranger
i have 72 np435 in my 78 ranger and when i really come on to it in second gear it won't shift to third but it works fine just driving normal. what could be wrong with it

also what years did they have the np 435 4 speeds in the trucks
Oil change might help but shifter fork rails and detents could be worn too. So could shaft the gear slides on.
 
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