Speedometer....ressurected! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shifty · 03-29-2005, 11:50 PM

So I found something really cool tonight. When I bought the truck, the speedometer didn't work. Didn't quite know why. I thought the speedometer gear in the tranny went out, but I pulled it out last night and found myself surprised...it looked fine! It's a two-piece unit...a bullet-shaped piece of metal with a plastic gear-wheel-on-a-stick through the middle of it. Never seen anything like it.

Started playing with it after I got it out - tried to attach the original speedo cable the PO put in it and realized the damned speedometer cable end didn't even fit onto the gear housing all the way, so the speedo cable wasn't making contact with the plastic part. Went to Advance Auto tonight and got a new 83.5" speedometer housing (last one was too short) and it fits like a champ. Testing it out tomorrow.

You guys ever seen anything like this before?

jhow66 · 03-30-2005, 01:13 AM

Just a few hundred times-most all early models are this way.

**CPNE** · 03-30-2005, 10:11 AM

I need one of those (gear and housing pictured). Anybody got one for 3:08's?

shifty · 03-30-2005, 01:16 PM

I'm not sure if mine is even the right one. The speed reads correctly until I get about midway through third gear. Anything over 45 is totally off, but it's pretty accurate up to that point.

I know, I know, I need to get one of those speedo ratio gear thingies. But ... this should be stock? Strange.

03-29-2005, 11:50 PM	#1
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,376	Speedometer....ressurected! So I found something really cool tonight. When I bought the truck, the speedometer didn't work. Didn't quite know why. I thought the speedometer gear in the tranny went out, but I pulled it out last night and found myself surprised...it looked fine! It's a two-piece unit...a bullet-shaped piece of metal with a plastic gear-wheel-on-a-stick through the middle of it. Never seen anything like it. Started playing with it after I got it out - tried to attach the original speedo cable the PO put in it and realized the damned speedometer cable end didn't even fit onto the gear housing all the way, so the speedo cable wasn't making contact with the plastic part. Went to Advance Auto tonight and got a new 83.5" speedometer housing (last one was too short) and it fits like a champ. Testing it out tomorrow. You guys ever seen anything like this before? Attached Images __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

03-30-2005, 01:13 AM	#2
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Just a few hundred times-most all early models are this way. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

03-30-2005, 10:11 AM	#3
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	I need one of those (gear and housing pictured). Anybody got one for 3:08's? __________________ 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

03-30-2005, 01:16 PM	#4
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,376	I'm not sure if mine is even the right one. The speed reads correctly until I get about midway through third gear. Anything over 45 is totally off, but it's pretty accurate up to that point. I know, I know, I need to get one of those speedo ratio gear thingies. But ... this should be stock? Strange. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.



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