72 vs. 71 Calipers? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**passthebuck** · 01-22-2009, 01:37 PM

I see that 71 & 72 have different part numbers, but can anybody tell me the difference? I ask because I have a set of spindles off of what I was told was a 71, but the casting number on the caliper is 5471172. I just want to make sure I get the correct caliper is all. Will 71 & 72 calipers fit each others spindles? Is there really a difference? Thanks!

**leddzepp** · 01-22-2009, 01:43 PM

71 and 72 are the same

BLACK AND BLUE 67-72 · 01-22-2009, 02:49 PM

They show two different part #'s for 71 and 72. They look identical have the same bore size on the piston are the same size overall and take the same pads and caliper hardware, soooo I would say that they will work just fine!!!!

**passthebuck** · 01-23-2009, 09:12 PM

I kinda figured they were the same, but ya never know. Thanks!

stope4 · 01-24-2009, 08:18 AM

There are slight differences between the two but they will interchange. I beleive the location where the hose connects is a little different. If you have original brake hoses I don't beleive the 71 hoses are long enough to reach where it connects to the 72 caliper. I had to change my original hoses a few months ago and opted for the stainless ones and I think they would work for either caliper.

Andy4639 · 01-24-2009, 10:09 AM

Can you tell a differance with the S/S hoses as far as stopping power are it feeling better? I have thought about swaping mine out since I haven't ever changed them.

72armyswbtruck · 01-24-2009, 11:50 AM

WOW, I just learned something new:
Disc Brake calipers for 71 and 72 are the same but different
Location of the brake hoses

**passthebuck** · 01-24-2009, 08:13 PM

Here are pics of the reman calipers I purchased yesterday. I told my parts guy I needed calipers for my 71 & this is what I got. How are the 72’s different? Anybody have a picture of what the 72's look like?

01-22-2009, 01:37 PM	#1
passthebuck Sisyphus was my mentor! Join Date: Sep 2002 Location: Carleton Place, Ontario CANADA Posts: 984	72 vs. 71 Calipers? I see that 71 & 72 have different part numbers, but can anybody tell me the difference? I ask because I have a set of spindles off of what I was told was a 71, but the casting number on the caliper is 5471172. I just want to make sure I get the correct caliper is all. Will 71 & 72 calipers fit each others spindles? Is there really a difference? Thanks! __________________ passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car

01-22-2009, 01:43 PM	#2
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 19,997	Re: 72 vs. 71 Calipers? 71 and 72 are the same

01-22-2009, 02:49 PM	#3
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Re: 72 vs. 71 Calipers? They show two different part #'s for 71 and 72. They look identical have the same bore size on the piston are the same size overall and take the same pads and caliper hardware, soooo I would say that they will work just fine!!!! __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

01-23-2009, 09:12 PM	#4
passthebuck Sisyphus was my mentor! Join Date: Sep 2002 Location: Carleton Place, Ontario CANADA Posts: 984	Re: 72 vs. 71 Calipers? I kinda figured they were the same, but ya never know. Thanks! __________________ passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car

01-24-2009, 08:18 AM	#5
stope4 Registered User Join Date: Jan 2006 Location: Houston Posts: 434	Re: 72 vs. 71 Calipers? There are slight differences between the two but they will interchange. I beleive the location where the hose connects is a little different. If you have original brake hoses I don't beleive the 71 hoses are long enough to reach where it connects to the 72 caliper. I had to change my original hoses a few months ago and opted for the stainless ones and I think they would work for either caliper.

01-24-2009, 10:09 AM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: 72 vs. 71 Calipers? Can you tell a differance with the S/S hoses as far as stopping power are it feeling better? I have thought about swaping mine out since I haven't ever changed them. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

01-24-2009, 11:50 AM	#7
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: 72 vs. 71 Calipers? WOW, I just learned something new: Disc Brake calipers for 71 and 72 are the same but different Location of the brake hoses __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

01-24-2009, 08:13 PM	#8
passthebuck Sisyphus was my mentor! Join Date: Sep 2002 Location: Carleton Place, Ontario CANADA Posts: 984	Re: 72 vs. 71 Calipers? Here are pics of the reman calipers I purchased yesterday. I told my parts guy I needed calipers for my 71 & this is what I got. How are the 72’s different? Anybody have a picture of what the 72's look like? Attached Images __________________ passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car



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