What is this and how does it come off? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

teeitup · 08-18-2009, 05:13 PM

Never in all my trucks I've parted have i ever seen anything lik this on a speedo. Any help on how to remove it? Thanks Randy

Rack Man · 08-18-2009, 05:14 PM

Wow...thats fricking weird...a speedo cable lock....WHY?

Maybe to prevent mileage fraud?

mclairmo · 08-18-2009, 05:24 PM

That's crazy, never seen that? It should be very easy to remove just find the key, right?

Jim_PA · 08-18-2009, 05:28 PM

I like rare finds! Wonder where it came from...

vectorit · 08-18-2009, 05:28 PM

That is interesting! The idea of mileage fraud prevention sounds plausible.

If it meens something to ya, as in some weird gadget. Take it to a lock smith, and get it keyed. Then put it on the trinket shelf in the garage...

I'm thinking a Dremel cutting wheel should be able to cut it off.

**71blksuper4x4** · 08-18-2009, 05:37 PM

hahaha, I was about to say, Randy out of all people doesn't know how to take something off one of these trucks. Then I seen the picture, and feel for ya. Good luck on getting it off bud.

lofly'a · 08-18-2009, 05:41 PM

i've seen those on rental cars when i did fleet maintenance back in the early 80's. it was to prevent the rentor from undoing the cable and put a lot of miles on a rental without paying extra mileage. a friend that works for a major rental agency told me that all of their cars have gps and recorder data that tracks how fast and where the the vehicle is at the time and at all times for insurance liability and theft purposes. he said if they are brought back broke or broken during use, that the rental companies are going after the rentor, so if you rent beware.

68gmsee · 08-18-2009, 06:13 PM

Never seen that before, but I agree, it had to be for a rental type truck. I wasn't aware that these trucks were rented out.

I bet Lockdoc could undo it for you.

Tynee · 08-18-2009, 06:14 PM

ummm, is it open yet?

Ben IV · 08-18-2009, 06:56 PM

Mabie not a rental but a company truck?

**LockDoc** · 08-18-2009, 07:02 PM

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That is actually an auto spare tire lock. It used a special lug nut that had a groove in it and the lock locked onto the nut. I have a couple of them. Will it slide off? If not you should be able to slide a screwdriver down inside and push the lock bolt back and slide it off.

LockDoc

**LockDoc** · 08-18-2009, 08:07 PM

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Here is a picture of a later style one. This one is for the 55-57 Chevy continental kit spare .

LockDoc

**special-K** · 08-18-2009, 08:42 PM

Yo,that`s whack!

teeitup · 08-18-2009, 09:00 PM

I haven't got it off yet, never messed with it anymore. There is one of these on the other end of the cable too, but its been disconnected. Lockdoc, I'll try the screw driver.
Thanks Randy

**LockDoc** · 08-18-2009, 11:27 PM

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These were obviously modified and used as stated above. Good old American ingenuity at it's best...

They can be picked if the lock bolt can't be pushed back.

LockDoc

Jacfourteen · 08-19-2009, 12:47 AM

you might be able to slide a screwdriver down into the larger gap (left side of cable in pic) then pry against the nut/ring, then try to turn the whole thing. The lock would probably still be locked to the cable but you could get the cable off of the cluster....just a though, good luck!

AusMarty · 08-19-2009, 08:41 AM

Attack it with a grinder !!

davebloomer · 08-19-2009, 02:04 PM

I watched a western last night.... so you could probably shoot it off.

Jim_PA · 08-19-2009, 03:08 PM

Quote:

Originally Posted by davebloomer

I watched a western last night.... so you could probably shoot it off.

Hope he's been staying at a Holiday Inn Express.

**gerfunken** · 08-19-2009, 06:13 PM

I'd be willing to bet that device was put in place to keep a teenage son from taking the truck out for joy rides, and dad logged the mileage. (No experience whatsoever from disconnecting the speedometer from Mom's RX-7 when I was 16.)

toddtheodd · 08-19-2009, 06:17 PM

Quote:

Originally Posted by gerfunken

I'd be willing to bet that device was put in place to keep a teenage son from taking the truck out for joy rides, and dad logged the mileage. (No experience whatsoever from disconnecting the speedometer from Mom's RX-7 when I was 16.)

That would've have stopped me!!! HAHAHAHAHAHAHA!!!!!

**DANTIP** · 08-19-2009, 06:37 PM

I was thinking rental vehicle as well. Rental agreements in the past had significant charges for mileage. Likely a fraud-prevention device.

old Chevy guy · 08-19-2009, 09:09 PM

I'd be willing to bet that device was put in place to keep a teenage son from taking the truck out for joy rides, and dad logged the mileage. (No experience whatsoever from disconnecting the speedometer from Mom's RX-7 when I was 16.)
__________________
-Scott
I had a buddy back about 1981 that used to steal his moms 79 toyota corolla wagon when she wasent home.So she would write down the milage.The kid would take the car down back roads to the local small town store to get cigaretts then drive the car all the way back in reverse to run the milage back off.

John H. · 08-20-2009, 05:05 PM

If you loosen the two screws holding the speedo to the back plate, is the hole big enough for the cable end to go through the tin? basically, remove the speedo out the front with the cable and remove the cable from the speedo. There was probably some kind of plug mounted underneath the speedo head to secure the lock from that side. Looks like a corvette spare tire lock.

LOW DOUGH · 08-20-2009, 05:19 PM

i think this applies. IIOY?

08-18-2009, 05:13 PM	#1
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	What is this and how does it come off? Never in all my trucks I've parted have i ever seen anything lik this on a speedo. Any help on how to remove it? Thanks Randy Attached Images __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

08-18-2009, 05:14 PM	#2
Rack Man Registered User Join Date: Sep 2008 Location: Tempe, AZ Posts: 770	Re: What is this and how does it come off? Wow...thats fricking weird...a speedo cable lock....WHY? Maybe to prevent mileage fraud? __________________ My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=309288 Last edited by Rack Man; 08-18-2009 at 05:17 PM.

08-18-2009, 05:24 PM	#3
mclairmo Registered User Join Date: Jan 2006 Location: Take Off Posts: 1,908	Re: What is this and how does it come off? That's crazy, never seen that? It should be very easy to remove just find the key, right?

08-18-2009, 05:28 PM	#4
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: What is this and how does it come off? I like rare finds! Wonder where it came from...

08-18-2009, 05:28 PM	#5
vectorit What? Join Date: Jun 2007 Location: Southern California Posts: 7,617	Re: What is this and how does it come off? That is interesting! The idea of mileage fraud prevention sounds plausible. If it meens something to ya, as in some weird gadget. Take it to a lock smith, and get it keyed. Then put it on the trinket shelf in the garage... I'm thinking a Dremel cutting wheel should be able to cut it off. __________________ Chris 1968 K20 Suburban 1972 K10 LWB PU

08-18-2009, 05:37 PM	#6
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,151	Re: What is this and how does it come off? hahaha, I was about to say, Randy out of all people doesn't know how to take something off one of these trucks. Then I seen the picture, and feel for ya. Good luck on getting it off bud. __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

08-18-2009, 05:41 PM	#7
lofly'a Registered User Join Date: May 2000 Location: Alexandria, LA 71301 Posts: 1,451	Re: What is this and how does it come off? i've seen those on rental cars when i did fleet maintenance back in the early 80's. it was to prevent the rentor from undoing the cable and put a lot of miles on a rental without paying extra mileage. a friend that works for a major rental agency told me that all of their cars have gps and recorder data that tracks how fast and where the the vehicle is at the time and at all times for insurance liability and theft purposes. he said if they are brought back broke or broken during use, that the rental companies are going after the rentor, so if you rent beware. __________________ -02 avalanche (daily driver) -66 gto ragtop 389/400 (garage queen, hand-me-down from dad) -72 Tribute Trans Am (6.0LS/T56 6-speed) in progress -2003 YUKON (Wife's) -71 gmc swb fleet (current project, gonna shave everything, bags, stuff w/ 20's, gen III powertrain) -48 3100 SWB - 12/31/23 LONG TERM Project

08-18-2009, 06:13 PM	#8
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: What is this and how does it come off? Never seen that before, but I agree, it had to be for a rental type truck. I wasn't aware that these trucks were rented out. I bet Lockdoc could undo it for you.

08-18-2009, 06:14 PM	#9
Tynee I miss this truck. Join Date: Dec 2001 Location: Lexington, KY U.S.A. Posts: 2,863	Re: What is this and how does it come off? ummm, is it open yet? __________________ '07 GMC Acadia SLT. Sweet ride. '08 Crew Cab Z-71 short bed. Really like this truck A LOT.

08-18-2009, 06:56 PM	#10
Ben IV Registered User Join Date: Dec 2006 Location: Glenpool OK Posts: 255	Re: What is this and how does it come off? Mabie not a rental but a company truck? __________________ 70 GMC custom short bed conversion 69 GMC panel truck

08-18-2009, 07:02 PM	#11
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,356	Re: What is this and how does it come off? - That is actually an auto spare tire lock. It used a special lug nut that had a groove in it and the lock locked onto the nut. I have a couple of them. Will it slide off? If not you should be able to slide a screwdriver down inside and push the lock bolt back and slide it off. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 08-18-2009 at 07:05 PM.

08-18-2009, 08:07 PM	#12
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,356	Re: What is this and how does it come off? - Here is a picture of a later style one. This one is for the 55-57 Chevy continental kit spare . LockDoc Attached Images __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 08-18-2009 at 08:16 PM.

08-18-2009, 08:42 PM	#13
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,862	Re: What is this and how does it come off? Yo,that`s whack! __________________ "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 ~

08-18-2009, 09:00 PM	#14
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	Re: What is this and how does it come off? I haven't got it off yet, never messed with it anymore. There is one of these on the other end of the cable too, but its been disconnected. Lockdoc, I'll try the screw driver. Thanks Randy __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

08-18-2009, 11:27 PM	#15
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,356	Re: What is this and how does it come off? - These were obviously modified and used as stated above. Good old American ingenuity at it's best... They can be picked if the lock bolt can't be pushed back. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -



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08-19-2009, 12:47 AM	#16
Jacfourteen Big Red - Now its a SWB! Join Date: Jun 2009 Location: Oroville, Ca Posts: 1,624	Re: What is this and how does it come off? you might be able to slide a screwdriver down into the larger gap (left side of cable in pic) then pry against the nut/ring, then try to turn the whole thing. The lock would probably still be locked to the cable but you could get the cable off of the cluster....just a though, good luck! __________________ 68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's

08-19-2009, 08:41 AM	#17
AusMarty Registered User Join Date: Jan 2005 Location: Australia Posts: 215	Re: What is this and how does it come off? Attack it with a grinder !!

08-19-2009, 02:04 PM	#18
davebloomer Registered User Join Date: Apr 2009 Location: Weatherford, OK Posts: 220	Re: What is this and how does it come off? I watched a western last night.... so you could probably shoot it off.

08-19-2009, 06:13 PM	#20
gerfunken Registered User Join Date: Feb 2009 Location: Surprise, AZ Posts: 490	Re: What is this and how does it come off? I'd be willing to bet that device was put in place to keep a teenage son from taking the truck out for joy rides, and dad logged the mileage. (No experience whatsoever from disconnecting the speedometer from Mom's RX-7 when I was 16.) __________________ -Scott 1972 Chevy K20 Picture Gallery Build Thread 1930 Chevy AD Picture Gallery 1929 Ford Model-A Picture Gallery 1975 Triumph TR-6 Picture Gallery

08-19-2009, 06:37 PM	#22
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,880	Re: What is this and how does it come off? I was thinking rental vehicle as well. Rental agreements in the past had significant charges for mileage. Likely a fraud-prevention device.

08-19-2009, 09:09 PM	#23
old Chevy guy Registered User Join Date: Apr 2007 Location: Foster Rhode Island Posts: 1,176	Re: What is this and how does it come off? I'd be willing to bet that device was put in place to keep a teenage son from taking the truck out for joy rides, and dad logged the mileage. (No experience whatsoever from disconnecting the speedometer from Mom's RX-7 when I was 16.) __________________ -Scott I had a buddy back about 1981 that used to steal his moms 79 toyota corolla wagon when she wasent home.So she would write down the milage.The kid would take the car down back roads to the local small town store to get cigaretts then drive the car all the way back in reverse to run the milage back off.

08-20-2009, 05:05 PM	#24
John H. Registered User Join Date: Oct 2007 Location: Sammamish, WA Posts: 2,115	Re: What is this and how does it come off? If you loosen the two screws holding the speedo to the back plate, is the hole big enough for the cable end to go through the tin? basically, remove the speedo out the front with the cable and remove the cable from the speedo. There was probably some kind of plug mounted underneath the speedo head to secure the lock from that side. Looks like a corvette spare tire lock.

08-20-2009, 05:19 PM	#25
LOW DOUGH I'M TRUCK CRAZY! Join Date: Oct 2006 Location: Sachse, TEXAS Posts: 1,737	Re: What is this and how does it come off? i think this applies. IIOY?

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