whats the difference between frames? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

halffast blazer · 07-19-2005, 01:23 PM

on '73-'87 k5 blazers, what is the difference 2wd VS 4wd frames? will 2wd suspension bolt on to 4wd frame, and vise versa?

**Captkaos** · 07-19-2005, 03:31 PM

The actual frame rails are the same, everything else is different. Leaf perches in the back are longer (makes it taller), tranny/t-case crossmember is different, brake mouting holes are in a different location, engine crossmember is different....

I am assuming you are asking this because you are wanting to convert. While the search is up, might want to look for 2wd conversion or something like that. This has been discussed A WHOLE LOT!

Jonboy · 07-19-2005, 05:47 PM

There are some minor body mounting differences also when they went to the dropped floor in 78. A couple of the rear floor mounting points are different, although I can't remember which ones they are right off hand.

halffast blazer · 07-19-2005, 07:08 PM

i should have said i have parts from an 82 2wd and i might buy an 81 4wd. so i may switch suspensions.

**Captkaos** · 07-19-2005, 08:13 PM

That would make everything simpler. But I would switch bodies instead.

07-19-2005, 01:23 PM	#1
halffast blazer Registered User Join Date: Mar 2005 Location: Texarkana, TX Posts: 65	whats the difference between frames? on '73-'87 k5 blazers, what is the difference 2wd VS 4wd frames? will 2wd suspension bolt on to 4wd frame, and vise versa? Last edited by halffast blazer; 07-19-2005 at 01:24 PM.

07-19-2005, 03:31 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	The actual frame rails are the same, everything else is different. Leaf perches in the back are longer (makes it taller), tranny/t-case crossmember is different, brake mouting holes are in a different location, engine crossmember is different.... I am assuming you are asking this because you are wanting to convert. While the search is up, might want to look for 2wd conversion or something like that. This has been discussed A WHOLE LOT! __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

07-19-2005, 05:47 PM	#3
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	There are some minor body mounting differences also when they went to the dropped floor in 78. A couple of the rear floor mounting points are different, although I can't remember which ones they are right off hand. __________________ 1974 Jimmy- 5.3/4L80e/NP241

07-19-2005, 08:13 PM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	That would make everything simpler. But I would switch bodies instead. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

07-19-2005, 07:08 PM	#4
halffast blazer Registered User Join Date: Mar 2005 Location: Texarkana, TX Posts: 65	i should have said i have parts from an 82 2wd and i might buy an 81 4wd. so i may switch suspensions.



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