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

coggonobrien · 11-13-2010, 03:07 AM

are the transmissions in the trucks/blazers the same and in the same position regardless of configuration? so would a c20 with a 4sp have same as a k5 with a th350?

Thanks,
David

Blazer1970 · 11-13-2010, 06:06 AM

The amount of drop in the crossmember depends on the trans/t-case that was used. They are not all the same. If the same tranny and t-case are used in a Blazer or Truck (TH350/NP205 or SM465/NP205), the same crossmember would be used in the truck as the Blazer.

coggonobrien · 11-13-2010, 06:08 AM

i'm using a 2wd frame and converting to 4wd using a rusty blazer. would it simply be a mater of drilling out the rivets and reinstalling with bolts?

cdowns · 11-13-2010, 09:02 AM

manual transmissons and auto transmissions use a completly different type of crossmoember mounting system// manual tranny has a bellhousing crossmember//auto tranny has a tailshaft mount crossmember

coggonobrien · 11-13-2010, 09:04 AM

do the crossmembers bolt into the same holes?

cdowns · 11-13-2010, 10:11 AM

no the crossmembers auto and manual are not in the slightest bit interchanable in any way shape or form, nowhere near the same mounting locatation, nowhere near the same cahassis width //there is nothing at all similar in mount look or appearance of the two// manual is riveted tto frame auto is bolted in frame location about 3feet rear of where the manual tranny mount is

raycow · 11-13-2010, 12:52 PM

Also, 4WD is different from 2WD.

Ray

11-13-2010, 03:07 AM	#1
coggonobrien Registered User Join Date: Mar 2008 Location: Coggon, IA Posts: 580	transmission crossmember question are the transmissions in the trucks/blazers the same and in the same position regardless of configuration? so would a c20 with a 4sp have same as a k5 with a th350? Thanks, David

11-13-2010, 06:06 AM	#2
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,510	Re: transmission crossmember question The amount of drop in the crossmember depends on the trans/t-case that was used. They are not all the same. If the same tranny and t-case are used in a Blazer or Truck (TH350/NP205 or SM465/NP205), the same crossmember would be used in the truck as the Blazer. __________________ Tim

11-13-2010, 06:08 AM	#3
coggonobrien Registered User Join Date: Mar 2008 Location: Coggon, IA Posts: 580	Re: transmission crossmember question i'm using a 2wd frame and converting to 4wd using a rusty blazer. would it simply be a mater of drilling out the rivets and reinstalling with bolts?

11-13-2010, 09:02 AM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: transmission crossmember question manual transmissons and auto transmissions use a completly different type of crossmoember mounting system// manual tranny has a bellhousing crossmember//auto tranny has a tailshaft mount crossmember __________________ 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

11-13-2010, 09:04 AM	#5
coggonobrien Registered User Join Date: Mar 2008 Location: Coggon, IA Posts: 580	Re: transmission crossmember question do the crossmembers bolt into the same holes?

11-13-2010, 10:11 AM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: transmission crossmember question no the crossmembers auto and manual are not in the slightest bit interchanable in any way shape or form, nowhere near the same mounting locatation, nowhere near the same cahassis width //there is nothing at all similar in mount look or appearance of the two// manual is riveted tto frame auto is bolted in frame location about 3feet rear of where the manual tranny mount is __________________ 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

11-13-2010, 12:52 PM	#7
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: transmission crossmember question Also, 4WD is different from 2WD. Ray __________________ Live more responsibly. Eat lower on the food chain. Eat vegetarians.



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