Caliper Backing Plates? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

crankshaft · 11-19-2003, 05:47 PM

OK, need a caliper backing plate for a project. I have a D44HD axle from a 74ish 3/4 GM truck...they no longer make backing plates for this application (factory)...what is the difference in the backing plates from 74-77 and 77+ and is there a difference in the 1/2ton and 3/4 ton GM D44 front axle caliper backing plate...or even the 10-bolt caliper backing plate.

Can I use any of these on my 74 and not need to change a bunch of other stuff? Or are there specific differenced that would affect swapping one another??

thanks,
crankshaft

crankshaft · 11-19-2003, 05:50 PM

I should have included that I am looking for a set of these...preferably the older style with the "tin" splash shield versus the newer "full circle" style.

thanks,
crank

crackajacka · 11-19-2003, 06:58 PM

is it the half circle?

crankshaft · 11-19-2003, 07:06 PM

Yeah, I believe they would be termed a half circle...if you remove the tin splash shield, then it looks like a big "C"

I should have added, I'm a dodge guy...converting over a drummed braked D44HD to GM disc brakes, which are by far better than the early attempts by dodge at the disc brakes for their trucks....the pin slides are better.

So take it easy on me if I don't know GM jargon!

Crank

crackajacka · 11-19-2003, 07:28 PM

lol, yea ive got some on my 86 so u should be able to get some off of any yea truck and they should work

drink2mny · 11-19-2003, 07:55 PM

Be sure to get the 3/4 ton plates. they are different than the 1/2 ton..
When I upgraded a 44 form 6 lug to 8 i had to change the backing plate.. couldn't use the 1/2ton plate..
And i'm not totally sure but I don't think you can use gm coporate 10 bolt backing plates

crankshaft · 11-20-2003, 12:47 AM

I think the 10-bolt stuff is identical to the D44 stuff from the knuckles out. So, from what I'm hearing, is the 3/4-ton stuff is different from 1/2-ton? What differences were there? Was there a different spacing, a different caliper placement??

thanks for the info,
crankshaft

toytruck · 11-20-2003, 01:07 AM

Have you check with the 4wheel nuts over at ttp://coloradok5.com/forums/ubbthreads.php There isn't many people here into 4x4's

drink2mny · 11-20-2003, 12:07 PM

Or go ahead and feel free to ask Randy Blackbird
Of Blackbird's Custom Trucks

509-534-5219

crankshaft · 11-20-2003, 12:09 PM

Thanks for the leads, I'll check into both of these!

crank

11-19-2003, 05:47 PM	#1
crankshaft Registered User Join Date: Nov 2003 Location: Southeast PA Posts: 5	Caliper Backing Plates? OK, need a caliper backing plate for a project. I have a D44HD axle from a 74ish 3/4 GM truck...they no longer make backing plates for this application (factory)...what is the difference in the backing plates from 74-77 and 77+ and is there a difference in the 1/2ton and 3/4 ton GM D44 front axle caliper backing plate...or even the 10-bolt caliper backing plate. Can I use any of these on my 74 and not need to change a bunch of other stuff? Or are there specific differenced that would affect swapping one another?? thanks, crankshaft

11-19-2003, 06:58 PM	#3
crackajacka Stylin Join Date: Sep 2001 Location: Tuttle, OK Posts: 620	is it the half circle? __________________ Ive been traveling for some time, with my fishin pole and my bottle of shyne. Most Girls like finished products and just dont understand what a good addiction does for you http://www.paulwall.us/

11-19-2003, 07:06 PM	#4
crankshaft Registered User Join Date: Nov 2003 Location: Southeast PA Posts: 5	Yeah, I believe they would be termed a half circle...if you remove the tin splash shield, then it looks like a big "C" I should have added, I'm a dodge guy...converting over a drummed braked D44HD to GM disc brakes, which are by far better than the early attempts by dodge at the disc brakes for their trucks....the pin slides are better. So take it easy on me if I don't know GM jargon! Crank Last edited by crankshaft; 11-19-2003 at 07:08 PM.

11-19-2003, 07:28 PM	#5
crackajacka Stylin Join Date: Sep 2001 Location: Tuttle, OK Posts: 620	lol, yea ive got some on my 86 so u should be able to get some off of any yea truck and they should work __________________ Ive been traveling for some time, with my fishin pole and my bottle of shyne. Most Girls like finished products and just dont understand what a good addiction does for you http://www.paulwall.us/

11-19-2003, 07:55 PM	#6
drink2mny Registered User Join Date: Jun 2003 Location: spokane wa Posts: 2,189	Be sure to get the 3/4 ton plates. they are different than the 1/2 ton.. When I upgraded a 44 form 6 lug to 8 i had to change the backing plate.. couldn't use the 1/2ton plate.. And i'm not totally sure but I don't think you can use gm coporate 10 bolt backing plates __________________ Support The Board

11-19-2003, 05:50 PM	#2
crankshaft Registered User Join Date: Nov 2003 Location: Southeast PA Posts: 5	I should have included that I am looking for a set of these...preferably the older style with the "tin" splash shield versus the newer "full circle" style. thanks, crank

11-20-2003, 12:47 AM	#7
crankshaft Registered User Join Date: Nov 2003 Location: Southeast PA Posts: 5	I think the 10-bolt stuff is identical to the D44 stuff from the knuckles out. So, from what I'm hearing, is the 3/4-ton stuff is different from 1/2-ton? What differences were there? Was there a different spacing, a different caliper placement?? thanks for the info, crankshaft

11-20-2003, 01:07 AM	#8
toytruck 5-7 dropped 87 CC Dually Join Date: Sep 2003 Location: bay city mi Posts: 326	Have you check with the 4wheel nuts over at ttp://coloradok5.com/forums/ubbthreads.php There isn't many people here into 4x4's __________________ I rather be in my 77 Sanger Picklefork Jet Hydro!

11-20-2003, 12:07 PM	#9
drink2mny Registered User Join Date: Jun 2003 Location: spokane wa Posts: 2,189	Or go ahead and feel free to ask Randy Blackbird Of Blackbird's Custom Trucks 509-534-5219 __________________ Support The Board

11-20-2003, 12:09 PM	#10
crankshaft Registered User Join Date: Nov 2003 Location: Southeast PA Posts: 5	Thanks for the leads, I'll check into both of these! crank

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