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02-20-2007, 09:03 PM
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#1 |
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Registered User
Join Date: Jan 2006
Location: Morro Bay C.A
Posts: 179
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transmission
i have a th 350 in my work truck (70 lwb) and when im driving it sometimes it will lurch and the shake and the column shift inside the cab will move itself to a lower gear
 it just started doing this... sometimes the transmission will kick the column linkage so hard it will separte the peice connected to the transmission and the peice going to the frame and than up to the column etc. 
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'69 C10 SWB 350 edelbrock int/carb .420 .442 cam 700r4 70 lwb c10 work truck 250 I6 with two inch lift springs and a two inch bodylift and 33/12.5s |
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02-20-2007, 09:07 PM
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#2 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: transmission
do you have good solid body mounts??
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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02-21-2007, 02:32 PM
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#3 |
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Registered User
Join Date: Jan 2006
Location: Morro Bay C.A
Posts: 179
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Re: transmission
im pretty sure the mounts are solid... its gotta be either the transmission moving and the body staying still or the body moving and the transmission staying still... but the tranny mount is good and engine mounts are new and solid...
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'69 C10 SWB 350 edelbrock int/carb .420 .442 cam 700r4 70 lwb c10 work truck 250 I6 with two inch lift springs and a two inch bodylift and 33/12.5s |
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02-21-2007, 04:07 PM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: transmission
inspect your motor mounts... Since you have a 70, you have a solid throttle linkage, so this is VERY important. There was a recall on this in 72, if the motor mount seperataes, the engine can move far enough to lock the throttle in what ever position it is in (even when you let off the throttle) or, with really high torque or if you floor it, it can turn the engine hard enough to go to wide open throttle.
Look at your motor mounts asap. |
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02-22-2007, 07:10 PM
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#5 |
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Registered User
Join Date: Jan 2006
Location: Morro Bay C.A
Posts: 179
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Re: transmission
so i had time today cuz it stopped raining to inspect the motor mounts and see if thats what was causing the transmission to shif itself and it would appear that the mounts are bad... ha ha it doesnt even look like there are bolts in them
 hmmm
__________________
'69 C10 SWB 350 edelbrock int/carb .420 .442 cam 700r4 70 lwb c10 work truck 250 I6 with two inch lift springs and a two inch bodylift and 33/12.5s |
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02-22-2007, 07:10 PM
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#6 |
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Registered User
Join Date: Jan 2006
Location: Morro Bay C.A
Posts: 179
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Re: transmission
i just stuck the floor jack right under the engine and you can see the separation hahahaha definitely not very safe.
__________________
'69 C10 SWB 350 edelbrock int/carb .420 .442 cam 700r4 70 lwb c10 work truck 250 I6 with two inch lift springs and a two inch bodylift and 33/12.5s |
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02-22-2007, 07:17 PM
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#7 |
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Senior Member
 
Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,883
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Re: transmission
You better fire that mechanic.
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'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. |
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02-22-2007, 07:58 PM
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#8 |
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Registered User
Join Date: Jan 2006
Location: Morro Bay C.A
Posts: 179
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Re: transmission
the bolts are acutally in the mount it just separted... i just pulled them off...
__________________
'69 C10 SWB 350 edelbrock int/carb .420 .442 cam 700r4 70 lwb c10 work truck 250 I6 with two inch lift springs and a two inch bodylift and 33/12.5s |
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