what will interchange? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1968vetL-71 · 09-25-2004, 04:27 AM

hey guys quick ?. i've read several threads about people swapping lots of stuff around from year to year. i read that 69-72 rears are different. what about the frames. will a 72 rear 5lug bolt up to a 70 frame and everything is kosher? also. when swapping over front disc's, basically the ball joints and outward stuff is different right? the a-arms are all the same. please shed some light on this stuff if anyone can. thanks a bunch guys.

krazy_texan · 09-25-2004, 04:41 AM

what you have sounds right to me but i have not put a front end together yet, as for interchanging parts, i have a 67 cab and chassis with a 69 rear end a 72 bed 72 front fenders a 69 grille and the list goes on, i have parts on my truck off of all 6 years of this style and most fit with no problem, except the power steering box.

longhorn71 · 09-25-2004, 04:56 AM

the power steering boxs from 68-84 well bolt on but the 67 frame is diffrent
doors are diffrent in 72
69-72 chev fender are the same 68-72 gmc fenders are the same and will not interchange from chev to gmc
all 67 chev and gmc fenders are the same

Tx Firefighter · 09-25-2004, 05:23 AM

Yes, a 72 rear will bolt right into a 67-71 truck. That's how most guys, myself included, swap to 5 lug bolt patterns.

The control arms in the front basically interchange. The ball joints must match the newer spindles though.

I use power steering boxes from up through 87 model trucks and through 91 model Suburbans. The Subs kept the old body style for longer than the trucks did. The later boxes used an o-ring type of seal on the power steering hoses, while the early style used a flare type of seal. It's a simple thing to convert though.

tmcgrawlookalike · 09-25-2004, 05:30 AM

rear end will go in with no problem.a-frames are same(disc or drum)so to put disc in place of drum,all you really need is disc spindles and all the stuff that hangs on them.rotors are the same all the way up to 87,just remember they also had 2 different thickness rotors for the later years(ld/hd),which 71-2`s used thicker,or hd in case you get some from a salvage.you may also use 73-up calipers,but hose mounting on these are different from 71-2 originals,so hose`s will have to be changed to accept the calipers.then again,original calipers are still readily available at almost any parts store.hope this helps

Brainchild · 09-25-2004, 05:50 AM

Ok I didn't know the chevy and GMC fenders were different

What is different about them?

Nima · 09-25-2004, 06:41 AM

On these interchangable parts, dose it make any difference if they are C20 or C10?. I have this 67 C20. Can I use the rear end from late 70?How about front end from late 70 or early 80?

**'68OrangeSunshine** · 09-25-2004, 10:15 AM

Quote:

Originally Posted by longhorn71

...
69-72 chev fender are the same 68-72 gmc fenders are the same and will not interchange from chev to gmc
all 67 chev and gmc fenders are the same

Hmm, I thought '67 -'68 Chevy fenders are the same as '67 -'72 GMC fenders. [Not counting the reflector cut-out.]

Jimmy72custom · 09-25-2004, 01:36 PM

The difference in GMC fenders is the front of the fender. It is made different to except the nicer looking grill.

68w/sbc406 · 09-25-2004, 08:29 PM

67 chev and 67 gmc are the same
68 chev and 68-72 gmc are the same
69-72 chev are the same

longhorn71 · 09-26-2004, 04:23 AM

Quote:

Originally Posted by Brainchild

Ok I didn't know the chevy and GMC fenders were different

What is different about them?

The shape of the front a round the grill area

Brainchild · 09-26-2004, 08:19 AM

Guess I should never take anything for granted eh? I have never hada fender off a GMC before,or I would have known that

Looks like it's a good thing I have two perfect fenders

09-25-2004, 04:27 AM	#1
1968vetL-71 Junior Member Join Date: Jun 2004 Location: Murfreesboro, Tn Posts: 1,092	what will interchange? hey guys quick ?. i've read several threads about people swapping lots of stuff around from year to year. i read that 69-72 rears are different. what about the frames. will a 72 rear 5lug bolt up to a 70 frame and everything is kosher? also. when swapping over front disc's, basically the ball joints and outward stuff is different right? the a-arms are all the same. please shed some light on this stuff if anyone can. thanks a bunch guys. __________________ 1969 impala conv 427 #s loaded. dad bought new 1969 "Judge" RA-3, rare warwick blue/white, #'s 1968 vet convertible #s 427/435 tripower (sold) 1968 belair 2door post #s 427/385 1936 ford 5w coupe dads 1st car 1969 camaro ss (17,xxx) miles Wanted: 69-72 suburban project, 69 camaro convertible. also any big block cars. 69-70 gto judge project.

09-25-2004, 04:41 AM	#2
krazy_texan Registered User Join Date: Oct 2002 Location: West Des Moines, Ia Posts: 3,233	what you have sounds right to me but i have not put a front end together yet, as for interchanging parts, i have a 67 cab and chassis with a 69 rear end a 72 bed 72 front fenders a 69 grille and the list goes on, i have parts on my truck off of all 6 years of this style and most fit with no problem, except the power steering box. __________________ Krazy Texan My Trucks are made with Wrenches not Chop Sticks 1967 GMC 3/4 ton "Johnny Cash" 1990 v1500 suburban 1967 Ford f100 Swb 4x4 "green bean" GOD BLESS JESUS, JOHN WAYNE, AND THE ALAMO

09-25-2004, 05:23 AM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Yes, a 72 rear will bolt right into a 67-71 truck. That's how most guys, myself included, swap to 5 lug bolt patterns. The control arms in the front basically interchange. The ball joints must match the newer spindles though. I use power steering boxes from up through 87 model trucks and through 91 model Suburbans. The Subs kept the old body style for longer than the trucks did. The later boxes used an o-ring type of seal on the power steering hoses, while the early style used a flare type of seal. It's a simple thing to convert though. __________________ I'm on the Instagram- @Gearhead_Kevin

09-25-2004, 05:50 AM	#6
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Ok I didn't know the chevy and GMC fenders were different What is different about them? __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

09-25-2004, 08:29 PM	#10
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	67 chev and 67 gmc are the same 68 chev and 68-72 gmc are the same 69-72 chev are the same __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

09-25-2004, 04:56 AM	#3
longhorn71 Senior Member Join Date: Sep 2004 Location: CANADA Posts: 1,681	the power steering boxs from 68-84 well bolt on but the 67 frame is diffrent doors are diffrent in 72 69-72 chev fender are the same 68-72 gmc fenders are the same and will not interchange from chev to gmc all 67 chev and gmc fenders are the same

09-25-2004, 05:30 AM	#5
tmcgrawlookalike Registered User Join Date: Jun 2004 Location: warr acres,oklahoma Posts: 650	rear end will go in with no problem.a-frames are same(disc or drum)so to put disc in place of drum,all you really need is disc spindles and all the stuff that hangs on them.rotors are the same all the way up to 87,just remember they also had 2 different thickness rotors for the later years(ld/hd),which 71-2`s used thicker,or hd in case you get some from a salvage.you may also use 73-up calipers,but hose mounting on these are different from 71-2 originals,so hose`s will have to be changed to accept the calipers.then again,original calipers are still readily available at almost any parts store.hope this helps

09-25-2004, 06:41 AM	#7
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,179	On these interchangable parts, dose it make any difference if they are C20 or C10?. I have this 67 C20. Can I use the rear end from late 70?How about front end from late 70 or early 80?

09-25-2004, 01:36 PM	#9
Jimmy72custom Registered User Join Date: Apr 2004 Location: Willits Ca Posts: 261	The difference in GMC fenders is the front of the fender. It is made different to except the nicer looking grill.

09-26-2004, 08:19 AM	#12
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Guess I should never take anything for granted eh? I have never hada fender off a GMC before,or I would have known that Looks like it's a good thing I have two perfect fenders __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

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