Erratic Speedo - TDR Roundtable

12-20-2000, 07:19 PM

#1 (permalink)

Lil' Dog

Offline
Join Date: Sep 1999 Location: Red Deer, Alberta, Canada Posts: 698 Photo Gallery

Check the connection of the cable to the tranny. Mine came loose and wore the pin off that comes out of the 90° "differential" that goes from the tranny to the cable. The pin is replacable so you don't have to buy the whole speed reduction/increaser kit. This little 90° gear set calibrates your speedo to the model of your truck(rear end ratio, tires etc.) At a speedometer repair shop the pin was $1, the speed reducer was $80 plus they needed the number off of it to be sure of the ratio. Ya right after 300,000 Km?
Also, the nut on the final drive out of the tranny/xfer in the yoke could be loose. Give that a good torquing if the above is OK. I don't know if this is true on the W, but the D it can be problematic.
Hope this helps.

Jeh

------------------
Jason Hoffman
Lil' Mack - 89 D250LE 5 Spd 3.54 Reg Cab. K&N,"tweaked pump", BD Injectors, Banks Pyro/Boost, 3.5" Exst tail section straight. E&M Custom seats. Bosch H4, PIAA 80W/80W HdLites. 100W Drv,55W Fogs. 237,500 miles (380,000 Kms) 7850 Hrs.
Cummins Power Booster member.
The Original Turbo Diesel

Lil' Mack Pics

Erratic Speedo

Non members can only view the initial post on threads more than 7 days old. There are 1 additional replies on this thread that you could view if you were a member.

TDR Membership offers many benefits including:

4 issues of the TDR magazine per year including these columns:
- Tailgating - A Letter From The Editor
- Letter Exchange - Responses From The Readers
- Member2Member - Members' Solutions To Members' Questions
- Technical Topics - Service/Parts Update
- First Generation - Owner-Specific Articles On The '89 - '93 Dodge Diesel Trucks
- 12-Valve Engines - Owner-Specific Articles On The '94 - '98.5 12-Valve Dodge Diesel Trucks
- 24-Valve Engines - Owner-Specific Articles On The '98.5 - '02 24-Valve Dodge Diesel Trucks
- Third Generation - Owner-Specific Articles On The '03 And Newer Dodge Diesel Trucks
- Blowin' In The Wind - Industry News
- Shadetree - Back To The Basics
- Celebrity Corner - The Shadetree Mechanic - Sam Memmolo
- From The Shop Floor - Tips From Turbo Diesel Repair Shops
- Products Showcase - Featured Products
- TDRelease - Vendor Press Releases
In many areas of the country a local chapter with events
A yearly printed copy of the TDR Travel companion listing approximately 700 TDR members across the country willing to help you if you have trouble on the road
Complete access to the TDR website including:
- Ability to do advanced searches over 1.1 million posts
- Access to members only forums (Truck 911, FAQ Forums, Discontinued parts support, Rigs spotted, Pay it forward, Other, and Political)
- Posting ability to the forums
- Ability to read an unlimited number of posts from the forums
- Can customize your forum list to your interests
- Can choose 1st, 2nd, 3rd gen, or rotating header graphics
- Limit searches to forums your interested in
- View posts since you last logged on
- Private message ability to other members
- Chat room access
- Diesel truck specific TSB listing by model year
- Online access to the Travel Companion database (with most current information)