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 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-16-2014, 03:45 PM   #1
Jonathans55
Registered User
 
Join Date: Jul 2014
Location: Fallon, NV
Posts: 37
Transmission Crossmember for Turbo 350 in 55 3600

Well ordering the parts for my build. Which will begin in a little under a month. I will keep all of you updated on the bumps and owies along the way. This will be my first. More of a swap than a build. I will be replacing the entire wiring harness as well and will be sure to document most everything. HERE is my question. For anyone that has completed a 350 engine, 350 transmission swap on a tri five i will ask this..... Will the 350 bolt up to my existing frame holes or will i need to drill new ones? OR will i need to completely replace the crossmember? IF i have to completely replace the crossmember, will i need a dropped one? Again first swap for me, and if you havent followed my earlier posts a novice in training. You all are my trainers lol. So 350, th350 swap, crossmember, motor mounts, transmission mounts on existing crossmember. Pass me your knowledge.
Jonathans55 is offline   Reply With Quote
Old 09-16-2014, 04:16 PM   #2
Rude Dude
Registered User
 
Rude Dude's Avatar
 
Join Date: Sep 2005
Location: Glendale Arizona
Posts: 1,188
Re: Transmission Crossmember for Turbo 350 in 55 3600

here is what you will need

http://www.classicparts.com/1947-59-.../#.VBiaCct0xdg

http://www.classicparts.com/1941-59-.../#.VBialct0xdg
Rude Dude is offline   Reply With Quote
Old 09-16-2014, 04:44 PM   #3
Apachemike
Registered User
 
Apachemike's Avatar
 
Join Date: Sep 2014
Location: Austell, Georgia
Posts: 162
Re: Transmission Crossmember for Turbo 350 in 55 3600

They sell this as a set for a few dollars less
Apachemike is offline   Reply With Quote
Old 09-16-2014, 05:35 PM   #4
Jonathans55
Registered User
 
Join Date: Jul 2014
Location: Fallon, NV
Posts: 37
Re: Transmission Crossmember for Turbo 350 in 55 3600

this is the only part that makes me nervous. welding those on in the right place. Thats one thing ill leave to the professionals.
Jonathans55 is offline   Reply With Quote
Old 09-16-2014, 06:22 PM   #5
OrrieG
Registered User
 
OrrieG's Avatar
 
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
Re: Transmission Crossmember for Turbo 350 in 55 3600

See if you can find a 73-80 ish truck auto crossmember. That is what I used, it came with the drive train. Frame width is the same as TF trucks.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread
1964 Chevelle Malibu w/ 355-350TH (daily driver)
Helpful AD and TF Manual Site Old Car Manual Project
OrrieG is offline   Reply With Quote
Old 09-16-2014, 06:48 PM   #6
Jonathans55
Registered User
 
Join Date: Jul 2014
Location: Fallon, NV
Posts: 37
Re: Transmission Crossmember for Turbo 350 in 55 3600

So I received a message on here that stated I didn't need new front cross members. simply take out the tower mounts on the front and put in the standard 350 mount and she'd mesh right up. Is that accurate?
Jonathans55 is offline   Reply With Quote
Old 09-16-2014, 07:57 PM   #7
OrrieG
Registered User
 
OrrieG's Avatar
 
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
Re: Transmission Crossmember for Turbo 350 in 55 3600

I am confused I was answering the Turbo 350 transmission crossmember question. Engine you can go with original type front mounts but it affects your accessory mounting because GM kept the bosses and used them for accessories. Or you can go with side mounts that use a saddle type mount or ones that bolt/weld to the frame. Some guys remove the original rear bell housing mount cross member, probably ok on a street driven truck, but that is what adds lateral stiffness between the frame at the front spring rear hangers. Without that cross member the engine and cab mounts take all the stress as the springs flex. I kept mine, makes for interesting install and you need to fab a two piece converter dust cover.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread
1964 Chevelle Malibu w/ 355-350TH (daily driver)
Helpful AD and TF Manual Site Old Car Manual Project
OrrieG 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 07:26 PM.


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