Pulling Motor, and Transmission - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ptjsk · 06-26-2019, 04:37 PM

Getting ready to pull the motor and the automatic transmission on my '72 Jimmy.

Is it best to try to pull the motor and transmission together, or is it better to pull motor first, then the transmission.

I wasn't planning to remove the transfer case. Do I need to pull that too, or does the transmission release from the transfer case easily?

Thanks, Pat

hemi43 · 06-26-2019, 04:58 PM

Just unbolt the transmission from the transfer case and it will slide right out. There will be less complications if you take the engine out first, then the transmission. Usually the complications stem from not having an engine hoist that will go high enough.
Also, if you decide to pull the engine and transmission as one unit, tape a thick plastic bag on the end of the transmission so that you don't spill all the fluid out because the unit will have to be tilted at a high angle for removal.

Ptjsk · 06-26-2019, 11:37 PM

I did as you said, and pulled the motor first.

Will pull the transmission tomorrow. I do have a receipt that the transmission was recently rebuilt, but I thought that having it this far, it would be crazy not to go through it.

Any idea why the numbers 505 are on the radiator support, and the same 505 number is on the AC unit?

Pat

hemi43 · 07-05-2019, 09:39 AM

The 505 is the build sequence. These marking were put on the factory floor. If you look closely, that number should also be at the top of the firewall.

**DeadheadNM** · 07-05-2019, 10:31 AM

Any more detail pics of the motor or firewall you can share? Documentation of survivors can be really helpful for future builds.

**jaros44sr** · 07-05-2019, 01:45 PM

Off the wall, but what if your firewall was white? do they change the crayon color?

psuedopimp · 07-05-2019, 03:37 PM

Yes. So it is faint but I believe it was black 22 on my firewall and a white 22 on my core support

psuedopimp · 07-05-2019, 03:41 PM

Fire wall pic

Ptjsk · 07-06-2019, 08:49 AM

Quote:

Originally Posted by hemi43

The 505 is the build sequence. These marking were put on the factory floor. If you look closely, that number should also be at the top of the firewall.

Just found the 505 on the back of my power brake unit as well. Haven't found it on my firewall though.

Pat

Ptjsk · 07-06-2019, 09:07 AM

Quote:

Originally Posted by DeadheadNM

Any more detail pics of the motor or firewall you can share? Documentation of survivors can be really helpful for future builds.

Man....I took several pictures of the motor, and the firewall. I'll see if I can download a few.

Ptjsk · 07-06-2019, 09:09 AM

A few more.

**DeadheadNM** · 07-06-2019, 09:34 AM

Thanks for posting! Really well depicts the vac lines AC hoses and shows what is possibly the factory location for the zip tie affixing the AC muffler hoses with the hoses to the charcoal can. The brass cap nut on the muffler is OEM - too cool.

06-26-2019, 04:37 PM	#1
Ptjsk Registered User Join Date: Jan 2018 Location: Northern CA Posts: 588	Pulling Motor, and Transmission Getting ready to pull the motor and the automatic transmission on my '72 Jimmy. Is it best to try to pull the motor and transmission together, or is it better to pull motor first, then the transmission. I wasn't planning to remove the transfer case. Do I need to pull that too, or does the transmission release from the transfer case easily? Thanks, Pat

06-26-2019, 04:58 PM	#2
hemi43 Registered User Join Date: Mar 2015 Location: Ontario Canada Posts: 1,526	Re: Pulling Motor, and Transmission Just unbolt the transmission from the transfer case and it will slide right out. There will be less complications if you take the engine out first, then the transmission. Usually the complications stem from not having an engine hoist that will go high enough. Also, if you decide to pull the engine and transmission as one unit, tape a thick plastic bag on the end of the transmission so that you don't spill all the fluid out because the unit will have to be tilted at a high angle for removal.

06-26-2019, 11:37 PM	#3
Ptjsk Registered User Join Date: Jan 2018 Location: Northern CA Posts: 588	Re: Pulling Motor, and Transmission I did as you said, and pulled the motor first. Will pull the transmission tomorrow. I do have a receipt that the transmission was recently rebuilt, but I thought that having it this far, it would be crazy not to go through it. Any idea why the numbers 505 are on the radiator support, and the same 505 number is on the AC unit? Pat Attached Images

07-05-2019, 09:39 AM	#4
hemi43 Registered User Join Date: Mar 2015 Location: Ontario Canada Posts: 1,526	Re: Pulling Motor, and Transmission The 505 is the build sequence. These marking were put on the factory floor. If you look closely, that number should also be at the top of the firewall.

07-05-2019, 10:31 AM	#5
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,443	Re: Pulling Motor, and Transmission Any more detail pics of the motor or firewall you can share? Documentation of survivors can be really helpful for future builds. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

07-05-2019, 01:45 PM	#6
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,761	Re: Pulling Motor, and Transmission Off the wall, but what if your firewall was white? do they change the crayon color? __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

07-05-2019, 03:37 PM	#7
psuedopimp Registered User Join Date: Jan 2009 Location: Las Cruces New Mexico Posts: 219	Re: Pulling Motor, and Transmission Yes. So it is faint but I believe it was black 22 on my firewall and a white 22 on my core support Attached Images __________________ Justin 1970 Blazer in progress

07-05-2019, 03:41 PM	#8
psuedopimp Registered User Join Date: Jan 2009 Location: Las Cruces New Mexico Posts: 219	Re: Pulling Motor, and Transmission Fire wall pic Attached Images __________________ Justin 1970 Blazer in progress

07-06-2019, 09:09 AM	#11
Ptjsk Registered User Join Date: Jan 2018 Location: Northern CA Posts: 588	Re: Pulling Motor, and Transmission A few more. Attached Images

07-06-2019, 09:34 AM	#12
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,443	Re: Pulling Motor, and Transmission Thanks for posting! Really well depicts the vac lines AC hoses and shows what is possibly the factory location for the zip tie affixing the AC muffler hoses with the hoses to the charcoal can. The brass cap nut on the muffler is OEM - too cool. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland Last edited by DeadheadNM; 07-06-2019 at 09:43 AM.



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