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Vibration. K20 '76 th350 NP203 and a 400 motor.
Well I replaced the np203 with another one. Friday I had finished, Monday test drive, No difference in the vibration. Tuesday jacked up the rear of the truck and ran it in gear to look at things again. Slowed the motor down to a crawl and used a test indicator on the driveshaft. It is .02 out in... -
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Vibration. K20 '76 th350 NP203 and a 400 motor.
I have a turbo 350 in my parts truck, does anyone know if a np203 transfer case takes a short shaft or a long shaft? Looks like my parts truck has a long shaft in it. -
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Vibration. K20 '76 th350 NP203 and a 400 motor.
Ok so I dropped the drive shaft and checked the front to back slop on the pinion and nothing. I did check the rear output shaft by turning it while it is neutral. It spins easier counter clockwise when looking at it from the back and harder clockwise. I then noticed that the whistle is there in... -
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Vibration. K20 '76 th350 NP203 and a 400 motor.
In neutral and park there is no vibration. There is whistle and with the stethoscope I have pinned it down to the hump of the trans right at the rear-ish area. The whistle is only in neutral and park. I just put it in neutral and checked the rear pinion slop and there is some maybe a half hour... -
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Vibration. K20 '76 th350 NP203 and a 400 motor.
Oh ya your right It is not as stock as I thought, it has the conversion kit to make it part time 4x4 and has the locking hubs. Ok so I think every thing else is stock. Ya know I don't even know what kit it has in it for the tail / out put / rear drive. I would bet that it has the cheap one in it... -
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Vibration. K20 '76 th350 NP203 and a 400 motor.
Well guys I got a problem. It's a 76 square body. Yep this may never end. I bought this truck about 2 years ago and have been searching for a solution ever sense. Pleas don't say buy a Ford. Here's my story. I get this truck running after towing it home from the P.O. He let it sit for about 10...
