C30 Rear shock Question!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GloryHound · 01-21-2004, 01:21 PM

Where rear shocks on the C30 duallies an option or did they come stock? The leaf springs on these trucks are so heavy I don't think a shock is going to make a lot of difference and my truck does not have rear shocks or upper shock mounts. The mounts are on the axle but not the frame. Nothing on the glove box option sheet says anything about rear shocks, but I have seen it mentioned on C20 and K20 sheets but even the ones that don't mention it seem to have rear shocks. If this is only an option where would I find that info to show to the inspection mechanic so he does not fail me becouse I have no rear shocks which are now mandatory? If this is standard equipment does anyone out there have a pair of upper shock mounts for a C-30 that they would be willing to sell me?

Thanks for any help!!

BigBlockBurris · 01-21-2004, 01:42 PM

I have looked at a bunch of ton trucks (67-72) and I have yet to see one with rear shocks. But, If I remeber right, the all had the mounting plate on the frame. Good luck and I hope this helps and BS inspections SUCK!

BBB

Longhorn Man · 01-22-2004, 01:29 AM

my one ton says nothing about shocks on the option sheet, but it does have them on there.
While I have not looked at other one tons, the 3/4 ton and 1/2 ton shocks that would be listed would be optional (as in H.D.) shocks.

Longhorn Man · 01-22-2004, 01:31 AM

Just looked in the restoration book...the front shocks are listed as standard, but there are no listings for rear standard shocks on a cab/chassis truck.

jku72 · 01-22-2004, 01:32 AM

My ton has shocks. They were optional.

1969 GMC · 01-22-2004, 01:36 AM

my K/2500 has shocks (or the remnants of said shocks) on all 4 corners. they are the period correct "pretzel twist" style. they are all completely rusted through, however.

i have HD front and rear springs listed as an option, but nothing about shocks.

junkyardjohn · 01-22-2004, 01:40 AM

MY C-30 DUALLY WRECKER HAS NO REAR SHOCKS, OR SHOCK MOUNTS ON THE FRAME.

JOHN

Longhorn Man · 01-22-2004, 02:07 AM

Uh oh...I was completly wrong.
Mine IS optioned with HD front and rear shocks.

*1972C10* · 01-22-2004, 04:18 AM

Longhorn thats a factory cruise truck? is it still there does it still work?

Longhorn Man · 01-22-2004, 08:14 AM

Yes, mostly, and I don't know.

The switch on the column is considered a replacement part, but it is not correct though. There are still some wires under the dash that go to the cruise controll that are burnt....but i'll deal with all that stuff later.

MR. GOODWRENCH · 01-22-2004, 10:18 AM

My ton truck has no shocks either,it has the brackets on the rearend for shocks,but it only has a hole for a bracket or a stud on the frame,do the rear shocks on a ton truck have a bracket on the frame or do they attach to a stud on the frame like the front shocks do?

GloryHound · 01-22-2004, 10:57 AM

So from the looks of things rear shocks are not standard on the C-30 dually trucks! Now I just have to find it in print for my inspection mechanic. Any Ideas on where I can find some thing that says, "Rear shocks where not installed on all 67-72 one ton trucks with dual rear wheels!", or something simular from a trusted source like GM? Could I write thier service department to get that answer?

**JIMs70GMC** · 01-22-2004, 11:02 AM

I have a related stroy whose out come could be your solution. GM trucks did not have switches on the emergency brake pedal until 71, an inspector failed my truck because the brake idiot light did not come on when the e-brake was engaged. I called the state police inspectors and explained to them that I can't even purchase the switch because at autozone/advanced auto it is not listed (i.e. no p/n until 71). And they called the inspection shop and let them know it was ok. This from a member in one commonwealth to other.

Longhorn Man · 01-22-2004, 08:13 PM

You tried going to another inspection station? If it has been on the road for 30 + years, you'd think someone knows there crap.

GloryHound · 01-23-2004, 11:12 AM

You would think someone would know their crap, but you get alot of these young kids at these garages that are looking under the hood and dash of my truck trying to figure out where the damn computer plugs in. I found a solution though. I'm paying for my brother to get his state inspection license again. Where he works he does not need it so he let it lapse. I'll pay for him to get it and then he inspects my truck for free!!!

Longhorn Man · 01-23-2004, 12:06 PM

Sounds like a plan.

Maybe he could specialize in older/obscure vehicles and keep this from happening to 'the next guy'.
Not that there is any money in it for him. They only make a couple bucks per vehicle don't they?

chucks70 · 01-23-2004, 12:55 PM

So, I've been hunting for upper mounts for a month and I don't even need them. Thought it was kind of funny that I've got 3 Eaton 1 ton rears and none of them had shock mounts on them. The axle on the truck the PO welded on some mounts. Now if I could only find the air cleaner for a 292 with PB.

01-21-2004, 01:21 PM	#1
GloryHound Working on a Nova. Join Date: Nov 2002 Location: ## Posts: 506	C30 Rear shock Question!! Where rear shocks on the C30 duallies an option or did they come stock? The leaf springs on these trucks are so heavy I don't think a shock is going to make a lot of difference and my truck does not have rear shocks or upper shock mounts. The mounts are on the axle but not the frame. Nothing on the glove box option sheet says anything about rear shocks, but I have seen it mentioned on C20 and K20 sheets but even the ones that don't mention it seem to have rear shocks. If this is only an option where would I find that info to show to the inspection mechanic so he does not fail me becouse I have no rear shocks which are now mandatory? If this is standard equipment does anyone out there have a pair of upper shock mounts for a C-30 that they would be willing to sell me? Thanks for any help!!

01-21-2004, 01:42 PM	#2
BigBlockBurris Registered User Join Date: Nov 2001 Location: Concord,NC,USA Posts: 743	One ton rear shocks. I have looked at a bunch of ton trucks (67-72) and I have yet to see one with rear shocks. But, If I remeber right, the all had the mounting plate on the frame. Good luck and I hope this helps and BS inspections SUCK! BBB

01-22-2004, 01:32 AM	#5
jku72 Registered User Join Date: Jan 2002 Location: cornville, maine Posts: 659	My ton has shocks. They were optional. __________________ jku Cornville, Maine 68 C10 burb 42 Willys MB 46 Dodge WF-32 1.5 ton 53 & 56 Olds' 60 Cadillac 22 Dodge Brothers

01-22-2004, 01:36 AM	#6
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	my K/2500 has shocks (or the remnants of said shocks) on all 4 corners. they are the period correct "pretzel twist" style. they are all completely rusted through, however. i have HD front and rear springs listed as an option, but nothing about shocks. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

01-22-2004, 01:40 AM	#7
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,425	MY C-30 DUALLY WRECKER HAS NO REAR SHOCKS, OR SHOCK MOUNTS ON THE FRAME. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

01-22-2004, 01:29 AM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	my one ton says nothing about shocks on the option sheet, but it does have them on there. While I have not looked at other one tons, the 3/4 ton and 1/2 ton shocks that would be listed would be optional (as in H.D.) shocks.

01-22-2004, 01:31 AM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Just looked in the restoration book...the front shocks are listed as standard, but there are no listings for rear standard shocks on a cab/chassis truck.

01-22-2004, 02:07 AM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Uh oh...I was completly wrong. Mine IS optioned with HD front and rear shocks. Attached Images

01-22-2004, 04:18 AM	#9
1972C10 Account Suspended Join Date: Dec 2003 Location: Texas Posts: 2,686	Longhorn thats a factory cruise truck? is it still there does it still work?

01-22-2004, 08:14 AM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Yes, mostly, and I don't know. The switch on the column is considered a replacement part, but it is not correct though. There are still some wires under the dash that go to the cruise controll that are burnt....but i'll deal with all that stuff later.

01-22-2004, 10:18 AM	#11
MR. GOODWRENCH Registered User Join Date: Jan 2003 Location: Maryville,TN Posts: 402	My ton truck has no shocks either,it has the brackets on the rearend for shocks,but it only has a hole for a bracket or a stud on the frame,do the rear shocks on a ton truck have a bracket on the frame or do they attach to a stud on the frame like the front shocks do? __________________ 68 CST SWB,full off frame restoration,72 GMC Sierra Grande SWB,72 Cheyenne 30 long wheelbase flatbed,2000 4door Chevy Dually bought new,2002 SS Camaro with 600 miles,bought it to put up,72 Monte Carlo,it was my first car,69 Impala with 50,000 miles,it was my dads,89 Dodge diseal 3/4 ton 4 wheel drive,my dad bought it new,68 Camaro RS dragcar,97 United Transporters 25 foot enclosed trailer,58 Oliver Super 77 Diseal,my grandfather bought new fully restored,55 Oliver Super 66 Diseal my uncle bought new,49 Oliver Rowcrop 88,51 Farmall H,51 Farmall Super C,81 Ford 3600,89 Ford 6610,49 Allis Chalmers WD45,81 Allis Chalmers 7060 my dad bought new,Allis Chalmers 175.

01-22-2004, 10:57 AM	#12
GloryHound Working on a Nova. Join Date: Nov 2002 Location: ## Posts: 506	So from the looks of things rear shocks are not standard on the C-30 dually trucks! Now I just have to find it in print for my inspection mechanic. Any Ideas on where I can find some thing that says, "Rear shocks where not installed on all 67-72 one ton trucks with dual rear wheels!", or something simular from a trusted source like GM? Could I write thier service department to get that answer?

01-22-2004, 11:02 AM	#13
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I have a related stroy whose out come could be your solution. GM trucks did not have switches on the emergency brake pedal until 71, an inspector failed my truck because the brake idiot light did not come on when the e-brake was engaged. I called the state police inspectors and explained to them that I can't even purchase the switch because at autozone/advanced auto it is not listed (i.e. no p/n until 71). And they called the inspection shop and let them know it was ok. This from a member in one commonwealth to other. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm Last edited by JIMs70GMC; 01-22-2004 at 11:05 AM.

01-22-2004, 08:13 PM	#14
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	You tried going to another inspection station? If it has been on the road for 30 + years, you'd think someone knows there crap.

01-23-2004, 11:12 AM	#15
GloryHound Working on a Nova. Join Date: Nov 2002 Location: ## Posts: 506	You would think someone would know their crap, but you get alot of these young kids at these garages that are looking under the hood and dash of my truck trying to figure out where the damn computer plugs in. I found a solution though. I'm paying for my brother to get his state inspection license again. Where he works he does not need it so he let it lapse. I'll pay for him to get it and then he inspects my truck for free!!!



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01-23-2004, 12:06 PM	#16
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Sounds like a plan. Maybe he could specialize in older/obscure vehicles and keep this from happening to 'the next guy'. Not that there is any money in it for him. They only make a couple bucks per vehicle don't they?

01-23-2004, 12:55 PM	#17
chucks70 Registered User Join Date: Feb 2002 Location: Cadiz, OH Posts: 628	Rear shock So, I've been hunting for upper mounts for a month and I don't even need them. Thought it was kind of funny that I've got 3 Eaton 1 ton rears and none of them had shock mounts on them. The axle on the truck the PO welded on some mounts. Now if I could only find the air cleaner for a 292 with PB. __________________ 68 1 ton dually 292, 2001 Sebring, 2004 Trailblazer, 11 Camaro Convertible.

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