3/4 Ton Rear Coils?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

junkyardjohn · 01-16-2003, 12:38 PM

HI GUYS ...I HAVE A QUESTION FOR ANY KNOWLEDJABLE INDIVIDUALS ON 3/4 TONS TRUCKS (OR SUBS & PANELS IN PARTICULAR) IT SEEMS ALL I'VE EVER DONE IS 1/2 TON SHORT BEDS. I RECENTLY PICKED UP A 68 3/4 TON PANEL, & WAS EXPECTING TO FIND A LEAF SPRUNG REAR END, BUT TO MY SURPRISE IT HAD TRAILING ARMS & COILS. I THOUGHT ALL 3/4 TONS WERE LEAFS. ALSO DOES ANYONE HAVE OR NO THE PRODUCTION #s (HOW MANY WERE PRODUCED) ON PANELS IN 68??

THANKS GUYS

Scottri · 01-16-2003, 12:48 PM

I've never seen a 3/4 ton coil sprung truck but I'm not an expert. Maybe it was a special order?

Scott

da-burb · 01-16-2003, 01:01 PM

Every 2wd burb/panel that I have seen has been coil sprung. Pretty much the same as trucks. It should follow along the same lines as GMC=leaf and Chev=coils on the 3/4 ton trucks.

junkyardjohn · 01-16-2003, 01:03 PM

I DON'T THINK I'VE EVER SEEN ONE EITHER , BUT IT SHOULD MAKE THE CONVERSION OVER TO 1/2 TON 5 LUG ALOT EASIER, AS I ALREADY HAVE A REAREND & COMPLETE FRONT END OUT OF A 72

**CPNE** · 01-16-2003, 01:18 PM

Interesting question.

In regards to pickup trucks Chevys had coils standard on 1/2 and 3/4 ton, with leafs optional. GMC's had leafs standard with coils option on 1/2 and 3/4 tons.

I have never seen a 2wd burb 1/2 or 3/4 ton with leafs either. I have seen 2 GMC burbs one a 1/2 ton, the other a 3/4 ton, both with coils and no mention of an option indicating such on the glove box. If GMC were true to form as with pickups, this would have been an option and listed as such. On a hunch, I'd bet that only coils were available on burbs for the simple fact of ride improvement on a vehicle designed more for passengers than cargo. Anyone have a 2wd burb with leafs?

As for panels, never seen more than 1.

mikep · 01-16-2003, 02:10 PM

My 3/4 ton Chevrolet truck has coils and a dana 60 in back . Rides a lot nicer than leafs too.

boilrman · 01-16-2003, 02:17 PM

I have a 70 3/4t with coils.

**COBALT** · 01-16-2003, 02:42 PM

Just about every 2wd 3/4 ton chevy I've seen has been coil sprung with the big HO52/72 10 bolt corporate axle. My first truck was set up that way, and the parts truck I found several months later by chance was set up the same way. Only trucks I've seen for sure with leafs are some GMC's and 4x4's...

I have seen a couple of 1/2 ton trucks with dana and coils, but I don't see them very often. I've seen 1 3/4 ton truck with coil and dana 60 so far...

Mike C · 01-16-2003, 02:55 PM

There seems to be a little regional variation in this, but I'm with Cobalt. 95% of the Chevy's I've seen, wheter 1/2 or 3/4 ton, were coil spring trucks. My '72 'burb is coil spring with an HO52/72. But 95% of the GMC are leaf springs, including all 3 of the 70 3/4 tons I have (one is a Longhorn, so that doesn't really count since they were ALL leaf, but 2 1/2" like 4x4 instead of 2 1/4" like 2x4.) I looked at a couple of 3/4 ton leaf Chevy's and both had 60's but most of the 4x4's I have seen had the HO axle. Would be interesting to compare where trucks were made to see if there was a preponderance of one type of suspension or axle housing at certain plants and certain years.

junkyardjohn · 01-16-2003, 02:59 PM

SEE?? AFTER ALMOST 45 YEARS I STILL LEARN SOMTHING NEW EVERYDAY.

I GUESS I JUST ASSUMED 3/4 TON TRUCKS WOULD BE LEAF SPRUNG. ANYBODY HAVE ANY PRODUCTION NO.s ON 68 PANELS ??

**CPNE** · 01-16-2003, 03:07 PM

All leaf spring 3/4 tons I've seen or had had dana 60's. All 3/4 ton coil spring trucks have had HO52/72.

As for 3/4 ton 4x4's, I've seen both dana 60's and HO52/72's Coincidentally, all the dana's were GMC's, all the HO52/72's were chevys.

This is in New England, though several of the 2wd 3/4 tons were from AZ.

mikep · 01-16-2003, 05:21 PM

Mine IS a coil spring dana 60 3/4 ton with a 7500 GVW rating! It IS the original rearend and has not been transpllanted from a leaf spring truck ! It also has HD rear coils . Its probably something to do with the fact it has a close ratio NP435 4 speed and originally had a big block.

It was built in Fremont Ca and was delivered March 1968 to La Brea CA. according to the protectoplate.

I can get the numbers off it if anyone doesnt believe me or still insists they Never came this way.

**CPNE** · 01-16-2003, 05:27 PM

Never meant to imply my observations were the only way it could be. Just what I have seen. I believe almost any combo could have been had.

**COBALT** · 01-16-2003, 05:30 PM

mikep: cool. Mark one up for dana60 coils.

Turns out both my 3/4 ton 2wd LWB trucks were made in '69 in Fremont, CA as well. Both coils with 7500 GVW limit and HO72/52 axles. Just for the record books.

01-16-2003, 12:38 PM	#1
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	3/4 Ton Rear Coils?? HI GUYS ...I HAVE A QUESTION FOR ANY KNOWLEDJABLE INDIVIDUALS ON 3/4 TONS TRUCKS (OR SUBS & PANELS IN PARTICULAR) IT SEEMS ALL I'VE EVER DONE IS 1/2 TON SHORT BEDS. I RECENTLY PICKED UP A 68 3/4 TON PANEL, & WAS EXPECTING TO FIND A LEAF SPRUNG REAR END, BUT TO MY SURPRISE IT HAD TRAILING ARMS & COILS. I THOUGHT ALL 3/4 TONS WERE LEAFS. ALSO DOES ANYONE HAVE OR NO THE PRODUCTION #s (HOW MANY WERE PRODUCED) ON PANELS IN 68?? THANKS GUYS __________________ 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

01-16-2003, 12:48 PM	#2
Scottri Registered User Join Date: Jul 2000 Location: Beaverton Oregon USA Posts: 338	I've never seen a 3/4 ton coil sprung truck but I'm not an expert. Maybe it was a special order? Scott __________________ 1969 GMC 3/4 Ton Long Bed Fleetside 350, 4 speed manual, P/S, P/B, Edelbrock 1406 Carb Beaverton / Portland Oregon

01-16-2003, 01:01 PM	#3
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	Every 2wd burb/panel that I have seen has been coil sprung. Pretty much the same as trucks. It should follow along the same lines as GMC=leaf and Chev=coils on the 3/4 ton trucks. __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

01-16-2003, 01:03 PM	#4
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	I DON'T THINK I'VE EVER SEEN ONE EITHER , BUT IT SHOULD MAKE THE CONVERSION OVER TO 1/2 TON 5 LUG ALOT EASIER, AS I ALREADY HAVE A REAREND & COMPLETE FRONT END OUT OF A 72 __________________ 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

01-16-2003, 01:18 PM	#5
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	Interesting question. In regards to pickup trucks Chevys had coils standard on 1/2 and 3/4 ton, with leafs optional. GMC's had leafs standard with coils option on 1/2 and 3/4 tons. I have never seen a 2wd burb 1/2 or 3/4 ton with leafs either. I have seen 2 GMC burbs one a 1/2 ton, the other a 3/4 ton, both with coils and no mention of an option indicating such on the glove box. If GMC were true to form as with pickups, this would have been an option and listed as such. On a hunch, I'd bet that only coils were available on burbs for the simple fact of ride improvement on a vehicle designed more for passengers than cargo. Anyone have a 2wd burb with leafs? As for panels, never seen more than 1. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-16-2003, 02:10 PM	#6
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	My 3/4 ton Chevrolet truck has coils and a dana 60 in back . Rides a lot nicer than leafs too. __________________ No truck :-(

01-16-2003, 02:17 PM	#7
boilrman 70 Chevy 3/4t Join Date: Sep 2000 Location: Kokomo,IN USA Posts: 1,230	I have a 70 3/4t with coils. __________________ Find a job you love and you'll never have to work a day in your life. 1998 Yamaha V-Star 650 1970 Chevy 3/4t, I6 (rebuilt), 4 speed Kokomo,IN

01-16-2003, 02:42 PM	#8
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Just about every 2wd 3/4 ton chevy I've seen has been coil sprung with the big HO52/72 10 bolt corporate axle. My first truck was set up that way, and the parts truck I found several months later by chance was set up the same way. Only trucks I've seen for sure with leafs are some GMC's and 4x4's... I have seen a couple of 1/2 ton trucks with dana and coils, but I don't see them very often. I've seen 1 3/4 ton truck with coil and dana 60 so far... __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

01-16-2003, 02:55 PM	#9
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	There seems to be a little regional variation in this, but I'm with Cobalt. 95% of the Chevy's I've seen, wheter 1/2 or 3/4 ton, were coil spring trucks. My '72 'burb is coil spring with an HO52/72. But 95% of the GMC are leaf springs, including all 3 of the 70 3/4 tons I have (one is a Longhorn, so that doesn't really count since they were ALL leaf, but 2 1/2" like 4x4 instead of 2 1/4" like 2x4.) I looked at a couple of 3/4 ton leaf Chevy's and both had 60's but most of the 4x4's I have seen had the HO axle. Would be interesting to compare where trucks were made to see if there was a preponderance of one type of suspension or axle housing at certain plants and certain years. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

01-16-2003, 02:59 PM	#10
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	SEE?? AFTER ALMOST 45 YEARS I STILL LEARN SOMTHING NEW EVERYDAY. I GUESS I JUST ASSUMED 3/4 TON TRUCKS WOULD BE LEAF SPRUNG. ANYBODY HAVE ANY PRODUCTION NO.s ON 68 PANELS ?? __________________ 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

01-16-2003, 03:07 PM	#11
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	Further Observations: All leaf spring 3/4 tons I've seen or had had dana 60's. All 3/4 ton coil spring trucks have had HO52/72. As for 3/4 ton 4x4's, I've seen both dana 60's and HO52/72's Coincidentally, all the dana's were GMC's, all the HO52/72's were chevys. This is in New England, though several of the 2wd 3/4 tons were from AZ. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-16-2003, 05:21 PM	#12
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	Mine IS a coil spring dana 60 3/4 ton with a 7500 GVW rating! It IS the original rearend and has not been transpllanted from a leaf spring truck ! It also has HD rear coils . Its probably something to do with the fact it has a close ratio NP435 4 speed and originally had a big block. It was built in Fremont Ca and was delivered March 1968 to La Brea CA. according to the protectoplate. I can get the numbers off it if anyone doesnt believe me or still insists they Never came this way. __________________ No truck :-(

01-16-2003, 05:27 PM	#13
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	Never meant to imply my observations were the only way it could be. Just what I have seen. I believe almost any combo could have been had. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-16-2003, 05:30 PM	#14
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	mikep: cool. Mark one up for dana60 coils. Turns out both my 3/4 ton 2wd LWB trucks were made in '69 in Fremont, CA as well. Both coils with 7500 GVW limit and HO72/52 axles. Just for the record books. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.



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