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FAQ's

 

 

 

 

 

 

 

 

 

 

Transmission/Transfer Case Length Combinations

(1) no output shaft change necessary, includes only the casting; ideal for existing 4WD transmission

(2) output shaft change necessary

(3) uses stock adaptor, 6 1/2" + 7/8" adaptor

(4) uses stock adaptor, 9 3/8" + 7/8" adaptor

(6) adaptor also works with TH350

(7) uses stock casting with new output shaft

(9) uses stock casting

(11) Uses the 51-6400 Casting/Housing and mates up to a 32 spline Atlas

(12) To mate up an AOD 4WD to the Atlas using the stock 28 spline input, a 2" thick spacer can be used (available through AA)

(13) The AOD-E/4R70W has a different output shaft than the AOD in reference to the oiling holes. Since the AOD-E does not have a governor, the oil supply line must be plugged. All kits for the AOD can be used on the AOD-E/4R70W, but you will have to obtain a few parts from Ford. The parts will cost approximately $9.00. They are:

  • Ford # 391-231S Plug Pin
  • Ford # F2VY7B176-A Sleeve to keep the pin in the shaft
  • Ford # RC-388104-S2 Governor snap ring to hold the sleeve on

(14) Kit is just the output shaft, uses stock housing

Transmission 2WD/4WD Transfer Case Adaptor # Transmission Length Adaptor Length Transfer Case Length Total Length Notes
700R4
4wd
Atlas
51-6300
23.375"
3.625"
13.8"
40.8"
1
700R4
2wd
Atlas
50-9102
23.375"
1.5"
13.8"
38.675"
2
700R4
4wd
Dana 20
50-2706
23.375"
2.5"
10.5"
36.375"
6
700R4
2wd
Dana 20
50-2706
23.375"
2.5"
10.5"
36.375"
2,6
TH400
2 or 4wd
Dana 20
50-3600
24.25"
10.25"
10.5"
45"
4
TH400
2 or 4wd
Dana 20
50-3600
24.25"
7.375"
10.5"
42.125"
3
TH400
2wd
Atlas
51-6400
24.25"
4.5"
13.8"
42.55"
11
AOD
2 or 4wd
Dana 20
50-2703/2704
20.5"
6"
10.5"
37"
AOD
2wd
Atlas
50-2901/2902
20.5"
6.375"
13.8"
40.675"
AOD
4wd
Atlas
52-2901/2902
20.5"
6.375"
13.8"
40.675"
7,12
AOD-EW/4R70W
2wd
Atlas
50-2902
21.375"
6.375"
13.8"
41.55"
13
AOD-EW/4R70W
4wd
Atlas
52-2902
21.375"
6.375"
13.8"
41.55"
13,14
AOD-EW/4R70W
2 or 4wd
Dana 20
50-2704
21.375"
6"
10.5"
37.875"
13
C4 (stock early Bronco) Atlas
Stock
17"
7.375""
13.8"
38.175"
9
C4 (stock early Bronco) Dana 20
Stock
17"
7.375""
10.5"
34.875
9


700R4 Advantages / History / Parts List / Pricing

Tips & Issues / Links & Resources / FAQ


 

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