1978 3+3 camper special - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mr.green · 10-21-2013, 11:42 PM

I have been nosing around and decided it was time to start a thread about why.

Last month I bought a 1978 C30 Silverado, 3+3 dually. It has a 454 with an auto.

Has 100k miles, cold factory R-12 AC, tilt, cruise, after market wiper delay, and a few other extras.

I have replaced and repaired several items, including:

Oil pan gasket, rear main seal, tranny filter and pan gasket, exhaust manifold, manifold gaskets, oil cooler gaskets, valve cover gaskets, plugs, sway arm bushings, new GM cab light lenses.

Still have a list of items to repair or replace. The kids like to take it to get ice cream.

Still trying to figure out the axle ratio.

bilfman · 10-22-2013, 12:44 AM

Love the ol crews! 2500obo looks like you did ok

**1774btcrew** · 10-22-2013, 01:27 AM

That looks like a nice truck! I think you did well!

Keith Seymore · 10-22-2013, 08:39 AM

Quote:

Originally Posted by Mr. green

Still trying to figure out the axle ratio.

Per the info packet in the GM Heritage Center Archives (page 12):

http://www.gmheritagecenter.com/docs...olet-Truck.pdf

3.73:1 is the standard ratio for C30, 454 with dual rear wheels.

If it had an optional ratio that code and description would appear on the SPID label.

K

Mr.green · 10-22-2013, 06:11 PM

I had a feeling the gear ratio was 3.73. That should be nice if I put a 4l80e in it.

I paid quite a bit less then the asking price. I am thinking about installing a 3/4 drop.

Mr.green · 11-13-2013, 06:27 PM

I have both tanks working now (replaced broken switching valve) found GM replacement cab light lenses, installed my vent shades and found and installed smooth stainless bed rail and tail gate caps. Still looking for a hood ornament and debating wether or not to buy a set of factory hub caps.

Still need to fix the cruise, adjust the rockers, replace the windshield, front carpet, headliner, the list is longer then I realized.

jitteryguy · 11-13-2013, 06:43 PM

nice !

10-21-2013, 11:42 PM	#1
Mr.green Registered User Join Date: Sep 2013 Location: Auburn, Indiana Posts: 50	1978 3+3 camper special I have been nosing around and decided it was time to start a thread about why. Last month I bought a 1978 C30 Silverado, 3+3 dually. It has a 454 with an auto. Has 100k miles, cold factory R-12 AC, tilt, cruise, after market wiper delay, and a few other extras. I have replaced and repaired several items, including: Oil pan gasket, rear main seal, tranny filter and pan gasket, exhaust manifold, manifold gaskets, oil cooler gaskets, valve cover gaskets, plugs, sway arm bushings, new GM cab light lenses. Still have a list of items to repair or replace. The kids like to take it to get ice cream. Still trying to figure out the axle ratio.

10-22-2013, 12:44 AM	#2
bilfman Registered User Join Date: Dec 2011 Location: Regina, SK, Canada Posts: 622	Re: 1978 3+3 camper special Love the ol crews! 2500obo looks like you did ok __________________ 1979 Chevy Dually Crew 4X4 454, D60 Tru-trac, D70 Detroit Locker, 3.73, 4L80E/NP205 1971 GMC 3/4 Ton 4X4

10-22-2013, 01:27 AM	#3
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,578	Re: 1978 3+3 camper special That looks like a nice truck! I think you did well! __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

10-22-2013, 06:11 PM	#5
Mr.green Registered User Join Date: Sep 2013 Location: Auburn, Indiana Posts: 50	Re: 1978 3+3 camper special I had a feeling the gear ratio was 3.73. That should be nice if I put a 4l80e in it. I paid quite a bit less then the asking price. I am thinking about installing a 3/4 drop.

11-13-2013, 06:27 PM	#6
Mr.green Registered User Join Date: Sep 2013 Location: Auburn, Indiana Posts: 50	Re: 1978 3+3 camper special I have both tanks working now (replaced broken switching valve) found GM replacement cab light lenses, installed my vent shades and found and installed smooth stainless bed rail and tail gate caps. Still looking for a hood ornament and debating wether or not to buy a set of factory hub caps. Still need to fix the cruise, adjust the rockers, replace the windshield, front carpet, headliner, the list is longer then I realized.

11-13-2013, 06:43 PM	#7
jitteryguy GoatLube Experss Join Date: Oct 2009 Location: clarksville, Tn. Posts: 1,337	Re: 1978 3+3 camper special nice ! __________________ *Goat Lube Express*, locations in Qalat,Afghanistan & Clarksville, Tn. '87 R30 dually 454/TH400 '85 1/2 ton CCSB '92 S10 350/350 '84 MonteCarlo 383/PG/9"ford '78 Malibu wagon 350/350 '78 Cutlass (project family car) '96 S10 Jimmy (Moma's)



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