3.54 1/2 ton rear? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**t korinek** · 01-02-2010, 03:53 AM

Anyone ever heard of this option in a 1/2 ton truck, first one I've seen.
Its in a 68 big block truck
I haven't looked to see if its a dana 60, thats usually a 3/4 ton rear gear ratio
Tom

Blazer1970 · 01-02-2010, 07:29 AM

I would say yes, it is a Dana 60.

Shaky · 01-02-2010, 07:30 AM

I've seen 3.54 Dana 44s before in 1/2 ton, leaf-sprung GMC trucks.

**too much stuff** · 01-02-2010, 11:41 AM

Quote:

Originally Posted by Shaky

I've seen 3.54 Dana 44s before in 1/2 ton, leaf-sprung GMC trucks.

Had one in my 68 gmc, 250 6 cyl, 3 speed manual 1/2 ton.

hounddogs! · 01-02-2010, 11:46 AM

3.54 is what's in my D60 that came from Rick Manes. He said he'd been finding them in SWB trucks with a BBC.

Longhorn Man · 01-02-2010, 08:32 AM

there is zero documentation of this, but they have popped up from time to time, again, mostly in dana/leaf spring trucks, and they seem to be more on the inline trucks than anything else.

**special-K** · 01-02-2010, 08:40 AM

It`s a Dana ratio.I`ll bet you have a Dana.It could be a 60 or a 44.I would have expected the truck to be a manual trans.They used taller gears in BBCs as well as automatics.They came through with 3.08s,usually when paired to an automatic.

**special-K** · 01-02-2010, 01:10 PM

Yeah,3/4t Danas are not unusual.It`s the 1/2t ones that are fairly rare.

**t korinek** · 01-02-2010, 06:36 PM

Well, I checked it today & its a 12 bolt, I guess they stuck the 3.54s in there just to give us something to wonder about.Thanks for all the input
Tom

Shyguy · 01-02-2010, 08:56 PM

I know of a '67 Chevy truck that has a big block with a 3.54 rear-end, but am not sure if it is stock.

My hunch is it is not.

I know the engine is not stock for the truck, it is a 454.

Danny

01-02-2010, 03:53 AM	#1
t korinek Truckin' Krazy Join Date: May 2000 Location: mesa az Posts: 6,193	3.54 1/2 ton rear? Anyone ever heard of this option in a 1/2 ton truck, first one I've seen. Its in a 68 big block truck I haven't looked to see if its a dana 60, thats usually a 3/4 ton rear gear ratio Tom Attached Images __________________ Dealer for: American Auto Wire Precision weatherstripping Dakota Digital Trim parts Carpets Truck World seat covers & Many others Chevy Parts locator in Mesa AZ!

01-02-2010, 07:29 AM	#2
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	Re: 3.54 1/2 ton rear? I would say yes, it is a Dana 60. __________________ Tim

01-02-2010, 07:30 AM	#3
Shaky Six in a row makes it go... Join Date: Mar 2009 Location: Vacationland: Maine Posts: 1,346	Re: 3.54 1/2 ton rear? I've seen 3.54 Dana 44s before in 1/2 ton, leaf-sprung GMC trucks. __________________ 67 C20 long step resto: http://67-72chevytrucks.com/vboard/s...d.php?t=342086 66 C10 long step build: http://67-72chevytrucks.com/vboard/s...=1#post3814790 CT to Alaska in a 67 C10: http://67-72chevytrucks.com/vboard/s...d.php?t=399224 “The height of sophistication is simplicity." - Clare Boothe Luce

01-02-2010, 11:46 AM	#5
hounddogs! Restoring it $200 at a time... Join Date: Aug 2008 Location: NE Kansas Posts: 887	Re: 3.54 1/2 ton rear? 3.54 is what's in my D60 that came from Rick Manes. He said he'd been finding them in SWB trucks with a BBC. __________________ Charter member of the 'Put the dimmer switch back on the damn floor where it belongs' Society '68 5.3L-4 speed LWB C20; grandpa bought it for the farm in '71. Now LS 5.3, rather than 327. DD '09 Pilot Weekender '65 Skylark 300-4V-4 speed Wife's '07 Lexus ES350; 117 actuator motors and I can't see the engine. Son's '04 F250 SuperCab 6.0

01-02-2010, 08:32 AM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: 3.54 1/2 ton rear? there is zero documentation of this, but they have popped up from time to time, again, mostly in dana/leaf spring trucks, and they seem to be more on the inline trucks than anything else.

01-02-2010, 08:40 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 3.54 1/2 ton rear? It`s a Dana ratio.I`ll bet you have a Dana.It could be a 60 or a 44.I would have expected the truck to be a manual trans.They used taller gears in BBCs as well as automatics.They came through with 3.08s,usually when paired to an automatic. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-02-2010, 01:10 PM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 3.54 1/2 ton rear? Yeah,3/4t Danas are not unusual.It`s the 1/2t ones that are fairly rare. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-02-2010, 06:36 PM	#9
t korinek Truckin' Krazy Join Date: May 2000 Location: mesa az Posts: 6,193	Re: 3.54 1/2 ton rear? Well, I checked it today & its a 12 bolt, I guess they stuck the 3.54s in there just to give us something to wonder about.Thanks for all the input Tom Attached Images __________________ Dealer for: American Auto Wire Precision weatherstripping Dakota Digital Trim parts Carpets Truck World seat covers & Many others Chevy Parts locator in Mesa AZ!

01-02-2010, 08:56 PM	#10
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: 3.54 1/2 ton rear? I know of a '67 Chevy truck that has a big block with a 3.54 rear-end, but am not sure if it is stock. My hunch is it is not. I know the engine is not stock for the truck, it is a 454. Danny __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.

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