truck drives itself

Clutch, transmission, rear axle

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19674x4
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truck drives itself

Post by 19674x4 »

ok, i have my truck up on jacks. all fours are off the ground. when the engine is running and the transmission is in neutral the rear tires are turning. and the front driveline is spinning slowly. whats going on. is my gear oil low, is the clutche slipping.? NP-435, Dana 24 transfer case, d-60 rear.
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Post by 72hiboy4x4 »

sounds like normal operation to me.
drag on the driveline components causes that.
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re: truck drives itself

Post by FORDification »

Right, it's normal. Just thick tranny oil turning things. It wouldn't be enough to actually move the truck, but when it's up on jackstands there isn't very much resistance, so....

Try that sometime after a long hot summer drive, when the oil has thinned out...it'll be much less likely to cause that.
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Post by 19674x4 »

ok thanks, i was kind of worried there. i pulled all the plugs on the inspection holes and checked all the oil in all the difs, and axles- needs changed really bad. so i'll get some gear oil and limited slip additive and get that done sunday. today i fanally got it off the jackstands after about 2 months.
My Photo Album
2012 Cummins-the luxury Tow Pig
1967 F-250 highboy 352, np435(((((((sold))))))))) My first true love
1968 F100 SWB. 360, np-435, flatbed, currently acting as a hornest nest and bee hive.
1971 F-100 4x4 Step-side. 360, np-435, 70k origional miles- needs allot of love.
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re: truck drives itself

Post by heep70 »

BOOOOOoooooooooo :eek: Scary :D
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Post by rjewkes »

My 72 F100 360 C6 Does this also.
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re: truck drives itself

Post by binder56jd »

ghost in the machine :shh: don't worry unless it starts shifting and revvin' up on it's own :lol: :lol:
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Post by 19674x4 »

oh great - got casper with me
My Photo Album
2012 Cummins-the luxury Tow Pig
1967 F-250 highboy 352, np435(((((((sold))))))))) My first true love
1968 F100 SWB. 360, np-435, flatbed, currently acting as a hornest nest and bee hive.
1971 F-100 4x4 Step-side. 360, np-435, 70k origional miles- needs allot of love.
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CJ,s 67 F100
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re: truck drives itself

Post by CJ,s 67 F100 »

Not Casper. Try Christine!
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re: truck drives itself

Post by CJ,s 67 F100 »

Not Casper. Try Christine!
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Post by marz68 »

Knite rider :P
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