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Road Test

NOTE: Before road testing, make sure fluid level and condition, and control linkage adjustments have been checked and corrected as necessary.
  1. During road test, transmission should upshift and downshift at approximately the speeds shown in Shift Speeds Chart.  All shifts may vary somewhat due to production tolerances or tire size. The important factor is quality of shifts. All shifts should be smooth, responsive, and with no engine speed flare-up.
    NOTE: Shifts at full throttle and kickdown are somewhat firmer than part throttle shifts.
  2. Slipping or engine speed flare-up in any gear usually indicates clutch or band problems. The slipping clutch or band in a particular gear can usually be identified by noting transmission operation in all selector positions and comparing which internal units are applied in those positions. See Clutch and Bank Application Chart. 
  3. Although this process of elimination can be used to detect any unit which slips, and to confirm proper operation of good units, actual cause of malfunction usually cannot be decided. Practically any condition can be caused by leaking hydraulic circuits or sticking valves. Therefore, unless an obvious condition exists, transmission should never be disassembled until hydraulic pressure tests have been made.
SHIFT SPEED INDICATIONS

Application 300 Series 380 Series
Lever in "D"
Idle
1-2 Upshift 9 13
2-3 Upshift 17 17
3-4 Upshift 23 25
4-3 Downshift 17 17
3-2 Downshift 12 11
2-1 Downshift ..... .....
Full Throttle
1-2 Upshift 22 44
2-3 Upshift 43 58
3-4 Upshift 73 101
4-3 Downshift 43 58
3-2 Downshift 20 55
2-1 Downshift 7 19
Kickdown
1-2 Upshift 25 44
2-3 Upshift 43 65
3-4 Upshift 73 106
3-2 Downshift 63 95
3-2 Downshift 20 55
2-1 Downshift 11 30
Lever in "3"(1)
Idle
1-2 Upshift 9 13
2-3 Upshift 17 17
3-2 Downshift 12 11
2-1 Downshift ..... .....
Full Throttle
1-2 Upshift 22 34
2-3 Upshift 43 58
3-2 Downshift 20 32
2-1 Downshift 7 19
Kickdown
1-2 Upshift 25 44
2-3 Upshift 43 65
3-2 Downshift 33 55
2-1 Downshift 11 30
Lever in "2"(2)
Idle
1-2 Upshift 25 29
2-1 Downshift 9 13
Full Throttle
1-2 Upshift 25 34
2-1 Downshift 14 19
Kickdown
1-2 Upshift 25 44
2-1 Downshift 18 30
Lever in "B"(3)
Idle-to-Kickdown
Upshift ..... 44
Downshift ..... 30
(1) Lever in "S" on 300 Series.
(2) Lever in "L" on 300 Series.
(3) On 380 Series only.
CLUTCH AND BAND APPLICATION CHART (ELEMENTS IN USE)

Selector Lever Position Band B-1 Band B-2 Disc Brake Clutch K-1 Clutch K-2 One-Way Clutch
First Gear ..... X ..... ..... X X
Second Gear X X ..... ..... ..... .....
Third Gear ..... X ..... X ..... .....
Fourth Gear ..... ..... ..... X X .....
Reverse ..... ..... X ..... X X
NEUTRAL OR PARK - All clutches and bands released and/or ineffective.
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