How to Accurately Identify the Toyota
A340, A341, A343
Overdrive Planetary Assembly.
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Tacoma, Sequoia, 4Runner and Lexus
A340Overdrive Planetary Assemblies
Instock for All Models updated with thrust bearing fix
Transforce planetary assemblies are remanufactured with a larger torrington thrust bearing assembly. This eliminates premature bearing failure. OE bearing dimensions roller diameter .066 Bearing ID 1.105 Bearing OD 1.500
The remanufactured overdrive planetary assembly has a larger Torrington thrust bearing. This is a permanent fix for your customer.
Roller diameter .115 Bearing ID 1.410 Bearing OD 2.00
340 planetary assemblies include overdrive, drum, OD planetary, bearing, ring gear, and hub.
To correctly order the planetary assembly you must check the number of teeth on the overdrive drum sungear, 31 teeth or 33 teeth; spline count on input shaft 20 spline or 26 spline. Overall length 8 1/8" or 8 3/4".
The A340 Series Overdrive Planetary Assemblies have 2 types of overdrive planetary assemblies with several variations of each.
The first step to correctly identifying the set is to do a tooth count on the overdrive sungear drum.
The sungear will have either 31 teeth (large set) or 33 teeth (small set).
The outside diameter of the ring gears are 5.280 inches for the 31 tooth and 4.640 inches for the 33 tooth.
After determining whether you have a 31 tooth or 33 tooth set, you will to measure the overall length of the planetary and the spline count. There is an 8 1/8 inches overall length 20 spline, 8 1/8 inches overall length 26 spline, and 8 3/4 inches overall length 20 spline.
Lastly you will have to check the overdrive drum to see if it has a reluctor and reluctor tooth count.
There are three types:
- without reluctor
- 16 tooth reluctor
- 32 tooth reluctor
33 Tooth Sungear
26 Spline 8 1/8 |
20 Spline 8 1/8 |
20 Spline 8 3/4 |
|
| No Reluctor | 97580AABK |
97580AAGK |
|
| 16 Tooth Reluctor | 97580AAAK |
97580AAHK |
97580ABAK |
| 32 Tooth Reluctor | 97580AAK |
97580ABK |
31 Tooth Sungear
26 Spline 8 1/8 |
20 Spline 8 1/8 |
20 Spline 8 3/4 |
|
| No Reluctor | |||
| 16 Tooth Reluctor | 97580BAK |
97580BBK |
|
| 32 Tooth Reluctor | 97580BAAK |
97580BBAK |
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