Need help w/backing plates - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bamafrost · 11-20-2009, 07:56 AM

Need some help fellow enthusiasts...

I have a '68 C10 SWB (disc front/rear drum) that I am putting a '71 rear axle into to get the 5 lug pattern. Problem is the '71 rear has rusted out backing plates and I am having a !@%$&*# hard time finding ANYONE that sells repro ones. Tried the usual supects; Classic, Ecklers, LMC, POL etc. No luck.....aghhh.

Any idea if the '68 plates will interchange? I haven't got the '68 rear end here so I can't tell (those backing plates are like new). Seems as if they would fit knowing Chevy...but maybe not.

I know the dealership might be able to provide...just don't want to get "bent over the stump".

I am trying local wrecking yards also...no luck so far.

Any help/suggestions would be very appreciated. Thanks. Tom

JimKshortstep4x4 · 11-20-2009, 09:00 AM

If the 68 is a 12 bolt differential, the backing plates should interchange.

Jim

**Hart_Rod** · 11-20-2009, 09:48 AM

They're the same.

bamafrost · 11-20-2009, 01:21 PM

Hey guys....thanks a lot! Tom

11-20-2009, 07:56 AM	#1
bamafrost Registered User Join Date: Sep 2009 Location: Florence, Alabama Posts: 157	Need help w/backing plates Need some help fellow enthusiasts... I have a '68 C10 SWB (disc front/rear drum) that I am putting a '71 rear axle into to get the 5 lug pattern. Problem is the '71 rear has rusted out backing plates and I am having a !@%$&*# hard time finding ANYONE that sells repro ones. Tried the usual supects; Classic, Ecklers, LMC, POL etc. No luck.....aghhh. Any idea if the '68 plates will interchange? I haven't got the '68 rear end here so I can't tell (those backing plates are like new). Seems as if they would fit knowing Chevy...but maybe not. I know the dealership might be able to provide...just don't want to get "bent over the stump". I am trying local wrecking yards also...no luck so far. Any help/suggestions would be very appreciated. Thanks. Tom __________________ Bamafrost "Wars fought, uprisings quelled, Coup d'Etats planned...right after my nap". '68 Rambler American 2 door post Built 340/727/8.75 w 3.73 posi '68 C10 shortie soon to have a 2.5/4 drop and new Americans: 16" x 8" chrome IROC's

11-20-2009, 09:00 AM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Need help w/backing plates If the 68 is a 12 bolt differential, the backing plates should interchange. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

11-20-2009, 09:48 AM	#3
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,865	Re: Need help w/backing plates They're the same. __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3

11-20-2009, 01:21 PM	#4
bamafrost Registered User Join Date: Sep 2009 Location: Florence, Alabama Posts: 157	Thanks Hey guys....thanks a lot! Tom __________________ Bamafrost "Wars fought, uprisings quelled, Coup d'Etats planned...right after my nap". '68 Rambler American 2 door post Built 340/727/8.75 w 3.73 posi '68 C10 shortie soon to have a 2.5/4 drop and new Americans: 16" x 8" chrome IROC's



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