Longhorn trucks - what were the options

[jku72]

I had a ‘70 Custom Camper 30 CST Longhorn with 402/th400, and a no-spin HO-72, leaf springs of course.

[Mike C]

Interesting on the big block HO axled trucks. IME, only rear axle available with the big block was the 3.54 geared Dana 60.

[Greg58]

Mine is 402 with 4 speed, and Dana 60 with 3.54 gearing.
GVW is 7500 max.

[Vicente Aceves]

We’re these dark grey painted hubcaps an option?

Or did this color not exist?

Thanks Vinnie

[notsolo]

Something that I thought of with a photo Chevyland had posted, was their any C30 Cheyenne Super? Thinking dual wheel flat beds, forgot all about C30 Longhorns. Google showed this beauty from 2017........https://bringatrailer.com/listing/19...yenne-longhorn

[Dieselwrencher]

Originally Posted by Mike C

Interesting on the big block HO axled trucks. IME, only rear axle available with the big block was the 3.54 geared Dana 60.

Not true. I know where there is a 72 Cheyenne Super C30 402 4 speed all original with a 4:10 HO72. It is an original truck too. I also know of a 72 Sierra Grande C20 402 truck that had 4.10 gears according to the spid. The truck I purchased for the bed and frame was a 402/TH400 and had an Eaton too. I still have the frame and rear axle.

All I know is that most times when a BBC was selected, you got the Dana 60 and 3:54s. My orange truck originally was a C20 402 4 speed and it had a D60 3.54 posi.

I used to think it was a Custom Camper thing but the Cheyenne Super above with the 4.10s is also a Custom Camper.

[va72longhorn]

The c30 longhorn that I just lost in the fire was a factory BB/TH400 with a 4:56 HO72. All factory.

[va72longhorn]

Originally Posted by notsolo

Something that I thought of with a photo Chevyland had posted, was their any C30 Cheyenne Super? Thinking dual wheel flat beds, forgot all about C30 Longhorns. Google showed this beauty from 2017........https://bringatrailer.com/listing/19...yenne-longhorn

I know this is an old thread, but yes, I had a C30 Cheyenne super.... buckets, tilt, Ac. Aux tank. Didn’t have the dual battery tray but had the camper wiring, but it wasn’t listed on the SPID.

[Dieselwrencher]

Here is a wrench in our thoughts....... Look at this 69 GMC budnikguy parted out starting in 2015. It clearly states 3.73 gears in the rear end. I'm assuming that had to be a D60? First one I have seen.

http://www.67-72chevytrucks.com/vboa...light=longhorn

[Accelo]

The NoSPIN Differentials came with this packet in the glove-box.
blue 72 gmc 4x4 had posted a picture of the envelope's contents.

[diesel burner]

Maybe a dumb question... was the No-Spin unit an early version of what is now known as a Detroit Locker ? Sure looks similar in design....

[kwmech]

Yes it was, the dana 60s came with a power-loc for limited slip

[Dieselwrencher]

Originally Posted by diesel burner

Maybe a dumb question... was the No-Spin unit an early version of what is now known as a Detroit Locker ? Sure looks similar in design....

I'm pretty sure the Detroit locker is the same thing. My dad always called the posi in his 69 Longhorn a Detroit locker. They're pretty dang tough!

[too much stuff]

Originally Posted by Vicente Aceves

We’re these dark grey painted hubcaps an option?

Or did this color not exist?

Thanks Vinnie

I think those were a 1969 color.

[kwmech]

Resurrecting this longhorn thread. Finally getting around to finishing this truck and get it on the road. Been a lot of work for the past 14-15 years...um yeah. Anyways that's what happens with too many irons in the fire. Getting to the point, I am working on the history of this thing and trying to get info and a comparable vin I can work with. Back story on that. I found this truck in a wrecking yard that a friend of mine USED to own and got all the appropriate paper work. Truck originally was a '68 flat bed that was a flatbed (133'') that was abused. Coincidently on top of that, 1 row over was a longhorn with the front end flattened out by a tree. Move the bed over with the front mounts and haul it home. Cab on the flat bed had severe rust and the yard (my buddy) gave me another complete cab for free that had AC. I had saved the VIN plate from the flat bed. Now I wish I could find it. So what I have now is a 1 ton truck with a VIN rating this thing at 5000 lbs. Anybody have an idea how I can get this thing registered? I know I'll have to get a VIN verifier.........already have a phone number. But I know that absence of a plate is going to screw things up.

[Killer Bee]

I posted the spids of both of mine five years ago

here's the U01 option going strong

[WorkinLonghorn]

I bought mine from the estate of the original owner. It had 89K miles and was in spectacular condition. 350/New Process 435 (Close Ratio), Dana 60 3.73 open. Custom Camper , tach dash Etc. Etc.

My left knee is telling me to sell it. I wonder what it's worth. I recently (5K miles ago) added a GM performance crate 350.

[Mike C]

Originally Posted by WorkinLonghorn

My left knee is telling me to sell it. I wonder what it's worth. I recently (5K miles ago) added a GM performance crate 350.

Put a diaphragm style 12” clutch in it and keep driving it. Unless you did that with the motor swap…

[Steeveedee]

Originally Posted by Mike C

Put a diaphragm style 12” clutch in it and keep driving it. Unless you did that with the motor swap…

Yup. there are things to be said about the lower pedal apply pressure of a diaphragm style clutch. #notaracingtruck

[WorkinLonghorn]

I'm not sure what is in there except that it came stock with the 12". I just had it replaced maybe 6K ago. I'll have to hire a crew to go through my office and find the receipt. What did these come with if it wasn't a diaphragm. I really have no clue about clutches. -BA

[kwmech]

Usually a Borg & Beck style 3 finger pressure plate. Took a different height TO bearing if I recall

[jumpsoffrock]

Originally Posted by WorkinLonghorn

I'm not sure what is in there except that it came stock with the 12". I just had it replaced maybe 6K ago. I'll have to hire a crew to go through my office and find the receipt. What did these come with if it wasn't a diaphragm. I really have no clue about clutches. -BA

Originally Posted by kwmech

Usually a Borg & Beck style 3 finger pressure plate. Took a different height TO bearing if I recall

So do you need a different TO bearing or flywheel when "upgrading" to a 12" diaphragm style clutch?

[Killer Bee]

Originally Posted by kwmech

Usually a Borg & Beck style 3 finger pressure plate. Took a different height TO bearing if I recall

this was the case when I swapped clutch kits in my '74 sm465

release bearing was definitely a different height, can't remember which was taller

but any semi decent parts counter should be able to match correct release bearing to pressure plate

good luck!

[WorkinLonghorn]

Originally Posted by Mike C

Put a diaphragm style 12” clutch in it and keep driving it. Unless you did that with the motor swap…

Not sure what I put in there but if memory serves I chose the stock replacement but a very good quality one. So maybe it's the old style. I can say that the clutch peddle is about 35 Lbs or so to depress (I could be way off) and my knee is shot driving in L.A. traffic. It would be well worth it to me to switch to a diaphragm if I could keep my truck (28 years so far). I already lubed up the linkage and removed the return spring -still a bear to operate. How easy is a 12" diaphragm in comparison?