*Speedometer Gears, Speedometer World
Speedometer Gears from PATC for Dodge Speedometers, Ford Speedometers and GM Speedometers. Speedometer Ratio Adapters, Speedometer Cables, Speedometer Housings, Speedometer Clips, Speedometer Retainers, Speedometer O-Rings, Speedometer Speed Sensors & more. 700R4 Speedometers, AOD Speedometers
Speedometer Gear Calculator Click Here
To determine your tires true diameter in relation to determining what speedometer gears you need, measure from the ground up to the center of the axle then multiply by two. The actual run out of the tire can be as much as 2 to 3 inches less than what the circumference of the tire measures. In effect your tire has two diameters.
To determine your rear end ratio, raise both tires off of the ground, turn both tires at the same time one complete turn, at the same time count the turns of the drive shaft, this is your ratio.
Speedometer Calibration:
Variables such as the vehicle’s axle ratio and tire diameter affect the accuracy of the speedometer. The following speedometer drive gears and driven gears are available for the 700R4 / 4L60 transmissions. Most cars and trucks with low rear end ratios will take a 15 tooth drive gear. There are two driven gear housings, one for 34 through 39 tooth driven gears and one for 40 through 45 tooth driven gears. Look at the bottom of the speedometer face for the numbers 940, 960, 1000, or 1020. These numbers are the number of revolutions the speedometer cable must turn in one mile of travel. Your speedometer may or may not show a number. Most speedometer from 1965 on use 1000.
Twelve speedometer driven gears are available for the 700R4 / 4L60 transmissions to calibrate the speedometer with various axle ratios and tire diameters. The number on the driven gear housing must match the number of teeth on the driven gear. Unless driven gears with more than 45 teeth and / or drive gears with fewer than 15 teeth become available, it will be impossible without using a ratio adapter to have an accurate speedometer with rear end gear ratios lower (higher numerically) than 4.10:1, unless 27 inch or larger tires are installed.
Showing 1–16 of 148 results
-
* 700R4 / GM TH350 / TH400 / 4L60E, Speedometer Gear Housing Retainer. ( Y style)
$ 7.00 Add to cart -
Geo Tracker Speedometer Gear Housing and Suzuki Tracker Speedometer Gear Housing for Sidekick, Samurai.
$ 49.00 Select options -
Geo Tracker Speedometer Gear and Suzuki Tracker Speedometer Gear. 19 Tooth Driven Gear for Sidekick, Samurai.
$ 49.00 Select options -
* 173 Inch Speedometer Cable Repair Kit.
$ 65.00 Add to cart -
* 700R4 / TH400 / 208 Transfer Case, Speedometer Driven Gear
$ 13.00 Select options -
* 700R4 Speedometer Drive Gear, #54X.
$ 13.00 Select options -
* 700R4 Speedometer gear housing for 34 to 39 tooth driven gear
$ 47.00 Add to cart -
* 700R4 Speedometer gear housing for 40 to 45 tooth driven gear
$ 49.00 Add to cart -
* 700R4 Speedometer Housing O-ring (also fits Olds TH350)
$ 1.75 Add to cart -
* Chevy / Dodge 13 tooth, 38 spline transfer case speedometer drive gear
$ 19.00 Add to cart -
* Chevy TH350 / 200-4R Speedometer Housing Retainer (one retainer), #68R
$ 7.00 Add to cart -
* Dodge / Jeep Speedometer Gears, Long Shaft
$ 39.00 Select options -
* Dodge / Jeep Speedometer Gears, Short Shaft
$ 39.00 Select options -
* Dodge, GM Ratio Adapter, Select Slow Down Percent
$ 129.00 Select options -
* Dodge, GM Ratio Adapter, Select Speed Up Rate
$ 129.00 Select options -
* E4OD 2WD 6 Tooth Speedometer Drive Gear, 2 13/16 Inches for Motor Homes and Others
$ 47.00 Add to cart
Showing 1–16 of 148 results