Product Description
Fits: Ford AODE / 4R70W
Alto direct clutch PowerPack for Ford AODE and 4R70W transmissions, for stock applications, made in the USA. It is designed for the original equipment AODE/4R70W stamped steel (GROB) direct clutch drum and builds an eight-friction-plate clutch pack.
Specifications
| Manufacturer part number | Alto Products Corp 049754A |
|---|---|
| Recommended clutch pack clearance | .025 in - .035 in |
| Fits | AODE, 4R70W |
Drum identification and install
The stamped steel drum is also the replacement when ordering a new drum for AOD (nonelectronic) transmissions, since the cast iron drums for 1980 through 1990 AODs are no longer manufactured. For AODs with cast iron drums, the Alto part numbers are 49750A for regular and heavy-duty applications and 49750AHP for high-performance and race applications.
The automaker used two drum setups with the same drum and piston dimensions: one with an original five-friction-plate capacity and one with six. The top backing plate tells them apart. The five-plate setup uses a double-step top apply plate, .380 in thick at the outer step and .230 in at the inner step. The six-plate setup uses a top backing plate that is flat on both sides and .220 in thick.
With either drum, install the eight friction plates and eight steel plates supplied, the supplied top backing plate and the original top backing plate snap ring. Air check the clutch pack several times to seat the components, then measure clearance with a feeler gauge between the top friction plate and the bottom of the backing plate. In most cases the clearance averages .030 in, and it can be adjusted with Alto's selective-thickness snap rings for this application.
What's included
- (8) Alto friction plates (.059 in / 1.50mm), # 049704A
- (8) Alto steel plates (.060 in / 1.52mm), # 049715A
- (1) Alto top backing pressure plate (.123 in / 3.12mm), # 049723
Notes
NOTE: THE PARTS IN THIS KIT WILL NOT FIT THE AOD CAST IRON DRUM.
This stamped steel style drum is also used as a replacement part when ordering a NEW drum for AOD (nonelectronic) transmissions since the cast iron drums for 1980 through 1990 AOD’s are no longer being manufactured.
Install the top backing plate also furnished and the original top backing plate snap ring.Air check the clutch pack several times to seat all the components.
Using a feeler gauge, check the clutch clearance by measuring between the top friction plate and the bottom of the backing plate.
Alto Products Corp part number: 049754A Our SKU: AL049754A Ford AODE/4R70W Transmission Direct Clutch Powerpack Stock Applications Made in the USA by Alto Products Corp Contents (8) Alto Friction Plates (.059” 1.50mm) # 049704A (8) Alto Steel Plates (.060” 1.52mm) # 049715A (1) Alto Top Backing Pressure Plate (.123” 3.12mm) # 049723 NOTE: THE PARTS IN THIS KIT WILL NOT FIT THE AOD CAST IRON DRUM.
