The Stovebolt.com Forums

Home | Tech Tips | Gallery | FAQ | Events | Features | Search

Register Log In

The Stovebolt Site Forums The Parking Lot Tons 'o Fun Speedometer works during test?

Fixing the old truck

BUSY BOLTERS
Are you one?

Where is it??

The Shop Area

continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.

See what you're missing.

Searching the Site - a click away

click here to search

New here ??? Where to start?

Click on image for the lowdown.

Where do I go around here?

====

Who's Online Now

6 members (sron48, J Lucas, Hotrod Lincoln, klhansen, Peggy M, 1 invisible), 453 guests, and 1 robot.

Key: Admin, Global Mod, Mod

Forum Statistics

Forums66

Topics126,777

Posts1,039,267

Members48,100

Most Online2,175
Jul 21st, 2025

Step-by-step instructions for pictures in the forums

Print Thread

Speedometer works during test? #1418741 07/30/2021 1:30 PM
Joined: Jan 2011 Posts: 152 Virginia D Duwop 'Bolter
Duwop 'Bolter D Joined: Jan 2011 Posts: 152 Virginia	57 Chevy 3800 235ci 4 spd trans during drill test of cable speedometer and odometer works as it should but not when connected to trans. Where do I check next? If they don't find you handsome,they should at least find you handy! ~ Thanks RED GREEN 1957 Chevy 3800 :: In the Stovebolt Gallery More pix on Flickr

Re: Speedometer works during test? Duwop #1418816 07/30/2021 10:40 PM
Joined: Jan 2011 Posts: 152 Virginia D Duwop 'Bolter
Duwop 'Bolter D Joined: Jan 2011 Posts: 152 Virginia	Trans I’d J1058 I thinks is sm420 so now I’m looking for a speedometer gear If they don't find you handsome,they should at least find you handy! ~ Thanks RED GREEN 1957 Chevy 3800 :: In the Stovebolt Gallery More pix on Flickr

Re: Speedometer works during test? Duwop #1419154 08/02/2021 5:23 PM
Joined: Nov 2000 Posts: 1,393 Dayton, Maryland. USA B Bill Marlow Camp Commandant
Bill Marlow Camp Commandant B Joined: Nov 2000 Posts: 1,393 Dayton, Maryland. USA	Duwop, in the drill test was the drill hooked up to the trans end of the speedo cable? Probably a stupid question but just trying to rule the cable itself out as the culprit. ~ Billy Old Dominion Stovebolt Society: Exotic Animal Division 1946 Chevrolet Cab Over Engine \| In the Gallery \| Video \| More pictures 1959 GMC 860 \| Pictures 1950 GMC 450 Flatbed W/W, Air Brake equipt (25% Owner) \| Pictures 1950 Chevrolet 3800 \| Pictures I've got a trailer and I'm not afraid to use it!

Re: Speedometer works during test? Duwop #1419294 08/03/2021 7:50 PM
Joined: Jun 2011 Posts: 5,096 Longmont, CO E EdPruss Crusing in the Passing Lane
EdPruss Crusing in the Passing Lane E Joined: Jun 2011 Posts: 5,096 Longmont, CO	Cable might just be too short when installed. Ed '37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.

Re: Speedometer works during test? Duwop #1419510 08/05/2021 3:45 PM
Joined: Jan 2011 Posts: 152 Virginia D Duwop 'Bolter
Duwop 'Bolter D Joined: Jan 2011 Posts: 152 Virginia	Yes drill hooked to trans end of cable, sorry about the delay in response as I’ve been researching more info. The following is what I’ve come up with I’ve got sm420 trans but not sure about date codes matching my 57 truck(see pic) I’ve got a 13 tooth speedometer drive gear my rear axle ratio should be 5.14:1 as per specs in manual any information you can provide would be of help Attachments 934F9B6D-945E-4720-A51F-76713587C743.jpeg (447.02 KB, 69 downloads) C5FD221A-DD27-41A6-AFBE-6C3D197F9C53.jpeg (133.71 KB, 70 downloads) If they don't find you handsome,they should at least find you handy! ~ Thanks RED GREEN 1957 Chevy 3800 :: In the Stovebolt Gallery More pix on Flickr

Re: Speedometer works during test? Duwop #1419633 08/06/2021 5:37 PM
Joined: Nov 2005 Posts: 318 Seattle Wa. W walterhvogel 'Bolter
walterhvogel 'Bolter W Joined: Nov 2005 Posts: 318 Seattle Wa.	I would disconnect the cable from the speedo and see if it spins while driving. 1947.2 Chevy Panel Truck 1-ton In Project Journals In the DITY Gallery 1955.2 Chevy Suburban 1955.2 Chevy 6700 Bus/RV

Re: Speedometer works during test? Duwop #1419669 08/06/2021 8:38 PM
Joined: Jan 2011 Posts: 152 Virginia D Duwop 'Bolter
Duwop 'Bolter D Joined: Jan 2011 Posts: 152 Virginia	Thanks Walter, can’t hurt to give it a try If they don't find you handsome,they should at least find you handy! ~ Thanks RED GREEN 1957 Chevy 3800 :: In the Stovebolt Gallery More pix on Flickr

Re: Speedometer works during test? Duwop #1419762 08/07/2021 8:09 PM
Joined: Jan 2020 Posts: 620 FL D Doc.Hall 'Bolter
Doc.Hall 'Bolter D Joined: Jan 2020 Posts: 620 FL	I spent days when I was younger trying to find the same problem. The replacement inner cable was to short. Finally bought the cable and casing, success! Doc Currently making 1954 3100 better than new and Genetics

Re: Speedometer works during test? Doc.Hall #1420909 08/17/2021 1:02 PM
Joined: Jan 2011 Posts: 152 Virginia D Duwop 'Bolter
Duwop 'Bolter D Joined: Jan 2011 Posts: 152 Virginia	Originally Posted by Doc.Hall I spent days when I was younger trying to find the same problem. The replacement inner cable was to short. Finally bought the cable and casing, success! Doc Doc.Hall, so I looked at the cable after your post and it appeared that the cable connection at the speedometer was broke and possibly short. I ordered a new cable and installed it and went for a drive to put some gas in it to test the new fuel gauge and sending unit. The speedometer is working though it’s about 3-5 mph behind gps. So for now that is close enough for me. Thank you very much for your suggestions If they don't find you handsome,they should at least find you handy! ~ Thanks RED GREEN 1957 Chevy 3800 :: In the Stovebolt Gallery More pix on Flickr

Moderated by Dusty53

Hop To

Link Copied to Clipboard

Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop

Powered by UBB.threads™ PHP Forum Software 8.0.0
(Release build 20240826)

Responsive Width:

PHP: 8.3.11 Page Time: 0.028s Queries: 15 (0.024s) Memory: 0.6333 MB (Peak: 0.7271 MB) Data Comp: Zlib Server Time: 2025-09-22 04:27:56 UTC
Valid HTML 5 and Valid CSS