Posi question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hemihead · 03-30-2010, 12:01 AM

When my truck is in park and with the rear axle on stands I can still turn the wheels. The drive shaft doesn't turn but if I push hard enough I can spin the wheels. They both move in the same direction.

Does this seem right or does the posi need rebuilding. Its the clutch type posi.

Thoughts or comments?

Mister laugh · 03-30-2010, 01:26 AM

As far as i know that is fine. That is how they are supposed to be.

oldspowered67C10 · 03-30-2010, 02:12 AM

OK heres a question. When in park, with the rear axle on stands, if you turn the wheels by hand, does the driveshaft turn?

oldspowered67C10 · 03-30-2010, 02:18 AM

sorrry, didnt read the post well enough. If you can spin the wheels in park, wheels spin in the same direction and the driveshaft doesnt spin thats wrong, sounds like the ring or pinion is missing teeth.

chevytrucks · 03-30-2010, 04:18 AM

I'm not sure what you got going on, but I know It's not your ring or pinion missing teeth. It wouldn't make it to the gas station with a v8,posi,missing teeth set up. I just went outside and checked mine out, and found that It spins the same in neutral, but opposite in park?
12 bolt-detriot locker-strange axels-33 inch bfg's. Spins 6,000 rpm circles on dry pavement without moving the front pivot tire anywhere I want.

cdowns · 03-30-2010, 06:30 AM

how does it act driving down the road is the most important thing

have you ever taken the cover off to inspect conditon,clean and change the gear oil?

high quality synthetic fluids are great, i like royal purple its ready to go for posis no additives required

hemihead · 03-30-2010, 10:30 AM

I just had a rebuild kit and the posi installed by a shop in town. I haven't had a chance to drive the truck yet as its a fresh build. I'll give the shop a call today and see what they have to say.

hemihead · 03-30-2010, 01:50 PM

Things might change when I through the truck on the ground. Maybe I am over analyzing things

GASoline71 · 03-30-2010, 02:13 PM

If it was rebuilt by a shop away from your home? how did you get it home?

If it's in park and the wheels still spin... hope you have a good parking brake.

Gary

hemihead · 03-30-2010, 04:09 PM

I took the rear end out of the truck and hauled it there, this truck is a fresh build so hasn't seen any miles yet.

We'll see tonight what happens when I get it off the stands

junkman · 03-30-2010, 05:49 PM

If the driveshaft is not turning, and both wheels are turning the same direction there is def a problem, like no ring gear or something.

chevytrucks · 03-30-2010, 11:54 PM

I agree with junkman. like I said last night, my clutch style posi turns opposite tire directions when the driveline can't turn. If they didn't my 72 would probabally be out in the street by morning. If you had posi with no cluth I don't think it would turn at all without the driveline. Good luck man. I'm curious to read what you find out.

hemihead · 03-31-2010, 01:33 AM

Very weird, sat the truck down, everything locks up in park as it should. Drove it around the yard and everything seems cool, could not go to far as I have no brakes, front clip or box on it right now. Just backed it on the trailer and its off to the body shop for final assembly!

03-30-2010, 12:01 AM	#1
hemihead Registered User Join Date: Mar 2007 Location: Estevan, Sask, Canada Posts: 185	Posi question When my truck is in park and with the rear axle on stands I can still turn the wheels. The drive shaft doesn't turn but if I push hard enough I can spin the wheels. They both move in the same direction. Does this seem right or does the posi need rebuilding. Its the clutch type posi. Thoughts or comments? __________________ 1967 SWB C-10, BBC 454, T400, 3.73 posi, 20" Coys 1972 K5 Blazer, SBC 400, 4 spd, 3.73, 6" lift, 35" mud grapplers 2011 Sierra Denali HD, 6.6 L Duramax, RBP 96R rims, leveled and Nitto trail grapplers, 2009 Acura MDX

03-30-2010, 01:26 AM	#2
Mister laugh Registered User Join Date: Jun 2007 Location: Edmonton, Alberta Posts: 423	Re: Posi question As far as i know that is fine. That is how they are supposed to be.

03-30-2010, 02:12 AM	#3
oldspowered67C10 Registered User Join Date: Jan 2006 Location: Cherry Valley,Ca Posts: 468	Re: Posi question OK heres a question. When in park, with the rear axle on stands, if you turn the wheels by hand, does the driveshaft turn?

03-30-2010, 02:18 AM	#4
oldspowered67C10 Registered User Join Date: Jan 2006 Location: Cherry Valley,Ca Posts: 468	Re: Posi question sorrry, didnt read the post well enough. If you can spin the wheels in park, wheels spin in the same direction and the driveshaft doesnt spin thats wrong, sounds like the ring or pinion is missing teeth.

03-30-2010, 04:18 AM	#5
chevytrucks Registered User Join Date: Feb 2010 Location: Sandpoint Idaho Posts: 25	Re: Posi question I'm not sure what you got going on, but I know It's not your ring or pinion missing teeth. It wouldn't make it to the gas station with a v8,posi,missing teeth set up. I just went outside and checked mine out, and found that It spins the same in neutral, but opposite in park? 12 bolt-detriot locker-strange axels-33 inch bfg's. Spins 6,000 rpm circles on dry pavement without moving the front pivot tire anywhere I want.

03-30-2010, 06:30 AM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Posi question how does it act driving down the road is the most important thing have you ever taken the cover off to inspect conditon,clean and change the gear oil? high quality synthetic fluids are great, i like royal purple its ready to go for posis no additives required __________________ 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

03-30-2010, 10:30 AM	#7
hemihead Registered User Join Date: Mar 2007 Location: Estevan, Sask, Canada Posts: 185	Re: Posi question I just had a rebuild kit and the posi installed by a shop in town. I haven't had a chance to drive the truck yet as its a fresh build. I'll give the shop a call today and see what they have to say. __________________ 1967 SWB C-10, BBC 454, T400, 3.73 posi, 20" Coys 1972 K5 Blazer, SBC 400, 4 spd, 3.73, 6" lift, 35" mud grapplers 2011 Sierra Denali HD, 6.6 L Duramax, RBP 96R rims, leveled and Nitto trail grapplers, 2009 Acura MDX

03-30-2010, 01:50 PM	#8
hemihead Registered User Join Date: Mar 2007 Location: Estevan, Sask, Canada Posts: 185	Re: Posi question Things might change when I through the truck on the ground. Maybe I am over analyzing things __________________ 1967 SWB C-10, BBC 454, T400, 3.73 posi, 20" Coys 1972 K5 Blazer, SBC 400, 4 spd, 3.73, 6" lift, 35" mud grapplers 2011 Sierra Denali HD, 6.6 L Duramax, RBP 96R rims, leveled and Nitto trail grapplers, 2009 Acura MDX

03-30-2010, 04:09 PM	#10
hemihead Registered User Join Date: Mar 2007 Location: Estevan, Sask, Canada Posts: 185	Re: Posi question I took the rear end out of the truck and hauled it there, this truck is a fresh build so hasn't seen any miles yet. We'll see tonight what happens when I get it off the stands __________________ 1967 SWB C-10, BBC 454, T400, 3.73 posi, 20" Coys 1972 K5 Blazer, SBC 400, 4 spd, 3.73, 6" lift, 35" mud grapplers 2011 Sierra Denali HD, 6.6 L Duramax, RBP 96R rims, leveled and Nitto trail grapplers, 2009 Acura MDX

03-30-2010, 05:49 PM	#11
junkman Registered User Join Date: Jun 2007 Location: metropolis il Posts: 91	Re: Posi question If the driveshaft is not turning, and both wheels are turning the same direction there is def a problem, like no ring gear or something.

03-30-2010, 11:54 PM	#12
chevytrucks Registered User Join Date: Feb 2010 Location: Sandpoint Idaho Posts: 25	Re: Posi question I agree with junkman. like I said last night, my clutch style posi turns opposite tire directions when the driveline can't turn. If they didn't my 72 would probabally be out in the street by morning. If you had posi with no cluth I don't think it would turn at all without the driveline. Good luck man. I'm curious to read what you find out.

03-31-2010, 01:33 AM	#13
hemihead Registered User Join Date: Mar 2007 Location: Estevan, Sask, Canada Posts: 185	Re: Posi question Very weird, sat the truck down, everything locks up in park as it should. Drove it around the yard and everything seems cool, could not go to far as I have no brakes, front clip or box on it right now. Just backed it on the trailer and its off to the body shop for final assembly! __________________ 1967 SWB C-10, BBC 454, T400, 3.73 posi, 20" Coys 1972 K5 Blazer, SBC 400, 4 spd, 3.73, 6" lift, 35" mud grapplers 2011 Sierra Denali HD, 6.6 L Duramax, RBP 96R rims, leveled and Nitto trail grapplers, 2009 Acura MDX



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