The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-28-2018, 10:55 AM   #1
Willys_MB
Registered User
 
Willys_MB's Avatar
 
Join Date: Apr 2017
Location: Boise, ID
Posts: 856
Pulling Engine and Transmission Together Advice

Hi guys,

I appreciate everyone's help, but I don't need advice from the people that don't remove the engine and transmission together and feel like giving a lecture. I'm looking for advice from the people that do remove them together.

I'm ready to pull my old 327 and I'm pulling the engine and tranny together. I have a 327 large journal and an NP435 (Chrysler Corporation's 4 speed with a granny gear). The cover on the NP435 is REALLY tall. I can't seem to get the cover off and my buddy said we could just drop the cross-member and it'll clear, but I was looking at it last night and the cross-member is riveted, not bolted.

I realize that a picture would be extremely helpful here; however, I forgot to grab one before I left the house today.

Does anyone know how to get the NP435 cover off or how to make it clear the firewall when pulling it while it's attached to the engine? Or is this plan hosed and I'll need to disconnect the two?

Thanks for your help!
__________________
1968 GMC C2500 Long Bed Fleetside
Willys_MB is offline   Reply With Quote
Old 08-28-2018, 11:05 AM   #2
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,514
Re: Pulling Engine and Transmission Together Advice

Yup!
Your plan is hosed!
Trans won’t slide out the front with the crossmember in place.
I’m affeared you’ll have to separate them.
Been there, tried that!

Bad part is to get at the rivets you need the motor/tranny out of the way.
geezer#99 is offline   Reply With Quote
Old 08-28-2018, 11:11 AM   #3
Willys_MB
Registered User
 
Willys_MB's Avatar
 
Join Date: Apr 2017
Location: Boise, ID
Posts: 856
Re: Pulling Engine and Transmission Together Advice

Quote:
Originally Posted by geezer#99 View Post
Yup!
Your plan is hosed!
Trans won’t slide out the front with the crossmember in place.
I’m affeared you’ll have to separate them.
Been there, tried that!

Bad part is to get at the rivets you need the motor/tranny out of the way.
Damn... Well I guess that solves that. It'll probably be easier to do anyways, I was hoping there was some secret trick out there... Thanks for the quick reply!
__________________
1968 GMC C2500 Long Bed Fleetside
Willys_MB is offline   Reply With Quote
Old 08-28-2018, 11:15 AM   #4
Steeveedee
Who Changed This?
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,088
Re: Pulling Engine and Transmission Together Advice

Could you do it if you pulled the radiator core support out so that the assembly doesn't have to tip so far? Breaking the two apart seems easier.
__________________
~Steven

'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

Simi Valley, CA
Steeveedee is offline   Reply With Quote
Old 08-28-2018, 12:29 PM   #5
Willys_MB
Registered User
 
Willys_MB's Avatar
 
Join Date: Apr 2017
Location: Boise, ID
Posts: 856
Re: Pulling Engine and Transmission Together Advice

Quote:
Originally Posted by Steeveedee View Post
Could you do it if you pulled the radiator core support out so that the assembly doesn't have to tip so far? Breaking the two apart seems easier.
Thanks for the tip, but I agree about the ease of the other route. It seems like it would have been possible with a different transmission, but because of the NP435 I'm a little stuck.

Thanks for your help guys, I wouldn't have gotten this far if it weren't for this board!
__________________
1968 GMC C2500 Long Bed Fleetside
Willys_MB is offline   Reply With Quote
Old 08-28-2018, 02:19 PM   #6
saxart
Registered User
 
saxart's Avatar
 
Join Date: Aug 2012
Location: St. Croix River Valley, WI
Posts: 795
Re: Pulling Engine and Transmission Together Advice

Quote:
Originally Posted by Steeveedee View Post
Could you do it if you pulled the radiator core support out so that the assembly doesn't have to tip so far? Breaking the two apart seems easier.
No, that doesn't work either. The transmission is literally about 3/4" too tall to fit between the bottom of the cab and the (riveted) cross-member. The only way it would work would be to either drill out the rivets on the cross-member, or remove the cab mounts and jack up the cab.

The good news is that those transmissions are only held in with 4 bolts.
__________________
Meet "Old Roy": http://67-72chevytrucks.com/vboard/s...d.php?t=707801
saxart is offline   Reply With Quote
Old 08-28-2018, 02:21 PM   #7
Willys_MB
Registered User
 
Willys_MB's Avatar
 
Join Date: Apr 2017
Location: Boise, ID
Posts: 856
Re: Pulling Engine and Transmission Together Advice

Quote:
Originally Posted by saxart View Post
No, that doesn't work either. The transmission is literally about 3/4" too tall to fit between the bottom of the cab and the (riveted) cross-member. The only way it would work would be to either drill out the rivets on the cross-member, or remove the cab mounts and jack up the cab.

The good news is that those transmissions are only held in with 4 bolts.
So I pulled the two that attach the transmission to the cross-member, where are the other two? The bell housing?
__________________
1968 GMC C2500 Long Bed Fleetside
Willys_MB is offline   Reply With Quote
Old 08-28-2018, 05:54 PM   #8
HO455
Post Whore
 
HO455's Avatar
 
Join Date: Feb 2016
Location: Portland Oregon
Posts: 10,804
Re: Pulling Engine and Transmission Together Advice

I believe he was referring to the number of bolts that hold the transmission to the engine. I if I remember correctly two from the transmission side into the bell housing, and two from inside the bell housing into the transmission.
The only secret trick I know of would be using a Blue Wrench.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
HO455 is offline   Reply With Quote
Old 08-28-2018, 06:09 PM   #9
saxart
Registered User
 
saxart's Avatar
 
Join Date: Aug 2012
Location: St. Croix River Valley, WI
Posts: 795
Re: Pulling Engine and Transmission Together Advice

Quote:
Originally Posted by HO455 View Post
I believe he was referring to the number of bolts that hold the transmission to the engine. I if I remember correctly two from the transmission side into the bell housing, and two from inside the bell housing into the transmission.
The only secret trick I know of would be using a Blue Wrench.
X2 What he said....
__________________
Meet "Old Roy": http://67-72chevytrucks.com/vboard/s...d.php?t=707801
saxart is offline   Reply With Quote
Old 08-28-2018, 07:17 PM   #10
toms68cst
Registered User
 
toms68cst's Avatar
 
Join Date: Jun 2000
Location: Bismarck, ND
Posts: 4,275
Re: Pulling Engine and Transmission Together Advice

I removed the seat/carpet and hump cover. I had an unfortunate neighbor friend shimmy the transmission back from the bell housing from below. I helped support it from above as it came back. Engine comes out pretty easily after that.
__________________
Unrestored 68 C-10 CST. Original 327. 4-Speed CH465. 50k or so miles.

TREASURER, Drum Brake Club.
toms68cst is offline   Reply With Quote
Old 08-28-2018, 08:58 PM   #11
saxart
Registered User
 
saxart's Avatar
 
Join Date: Aug 2012
Location: St. Croix River Valley, WI
Posts: 795
Re: Pulling Engine and Transmission Together Advice

Since it sounds like you're going to separate the transmission from the engine, maybe this will help. I almost forgot about this write up I did awhile back.

http://67-72chevytrucks.com/vboard/s...d.php?t=744281
__________________
Meet "Old Roy": http://67-72chevytrucks.com/vboard/s...d.php?t=707801
saxart is offline   Reply With Quote
Old 08-29-2018, 11:57 AM   #12
Willys_MB
Registered User
 
Willys_MB's Avatar
 
Join Date: Apr 2017
Location: Boise, ID
Posts: 856
Re: Pulling Engine and Transmission Together Advice

Wow, thanks for the write up and tips, guys!

I was able to locate the four bolts last night and I removed two of them, but now I've gotta dig out my dad's transmission jack from his garage...

Thanks for everything, guys!
__________________
1968 GMC C2500 Long Bed Fleetside
Willys_MB is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:19 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com