AltoInstruction Book -- AltoUSA.com

Return Home

One Alto Way
Atmore, AL 36502

EMAIL:
sales@altousa.com

PHONE:
251.368.7777

FAX:
251.368.7774

Para Español
305-892-7777

Para Español Email
vendes@altousa.com

ALTO KIT #49754A/49754AHP

FORD AODE / 4R70W DIRECT CLUTCH POWERPACK®FOR STAMPED STEEL (GROB) DRUM TYPES USED IN REGULAR AND HEAVY DUTY APPLICATIONS

POWERPACK® KIT CONTENTS:

KIT NUMBER 49754A:
(Regular and Heavy Duty)
(8) FRICTION PLATES .059 #49704A, (8) STEEL PLATES .060 #49715A,
(1) TOP BACKING PLATE #49723

KIT NUMBER 49754AHP:
(Hi-Performance)
(8) FRICTION PLATES .059" #49744A, (8) STEEL PLATES .060" #49715AK,
(1) TOP BACKING PLATE #49723

THE PARTS IN THIS KIT WILL NOT FIT THE AOD CAST IRON DRUM. FOR AOD’S WITH CAST IRON DRUMS, USE ALTO PART NUMBERS 49750A FOR REGULAR AND HEAVY DUTY APPLICATIONS; 49750AHP FOR HI-PERFORMANCE AND RACE APPLICATIONS

DURABILITY AND PERFORMANCE BENEFITS OF THIS KIT ARE:

The extra capacity clutch setup in this kit offers a significant increase in overall durability and performance to avoid premature clutch element distress or burnup. This is accomplished by spreading the apply and holding energy loads over more friction plate surface area. The additional plates greatly increase the overall clutch pack resiliency which can be best described as having an increase in clutch pack accumulation. Therefore, the apply and release of the direct clutch will be smoother. The increased holding power of the Powerpack® also offers an increase in safety when the main line pressure cut back occurs in third and fourth. This clutch kit offers you the ability to confidently repair AODE/4R70W transmissions in regular, sport, and heavy duty truck applications.

READ THIS BEFORE BEGINNING INSTALLATION

The contents of these kits have been specifically designed for the original equipment AODE/4R70W STAMPED STEEL (GROB) direct clutch drum. This stamped steel style drum is also used as a replacement part when ordering a NEW drum for AOD (non-electronic) transmissions since the cast iron drums for 1980 through 1990 AOD’s are no longer being manufactured.

IDENTIFYING THE TWO DIFFERENT ORIGINAL CAPACITY DRUMS

There are two different drum setups used by the Auto Maker. One drum has an original five friction plate capacity while the other drum has a six friction plate capacity. Between the two setups, the drum and pistons are the same dimension. The difference is the design and thickness of the top backing plate which is easily distinguished. The five plate setup uses a top apply plate with a double step design. The outer step of the plate measures .380" in thickness while the inner step measures .230" in thickness. The six plate setup uses a top backing plate that is flat (no step) on both sides and measures .220" in thickness.

INSTALLATION INSTRUCTIONS

NOTE: Regardless of whether you have an original five or six plate stamped drum setup, you will be building an EIGHT FRICTION PLATE clutch pack!Begin by installing EIGHT friction plates and EIGHT steel plates furnished. 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. The recommended clutch pack clearance is .025" - .035".In most cases, the clutch pack clearance will average .030". The clutch pack clearance is easily adjustable. You can install one of the selective thickness snap rings that Alto has available for this application listed below.

SELECTIVE SNAP RINGS AVAILABLE

ALTO #	REPLACES OEM#	THICKNESS
49251-052	FSAZ-7D483-A	.052"
49251-066	F3AZ-7D483-B	.066"
49251-080	F3AZ-7D483-C	.080"
49251-094	F3AZ-7D483-D	.094"

NOTE: These snap rings are inexpensive. We suggest stocking one of each.

IMPORTANT: Be sure to presoak the friction plates in ATF for fifteen minutes or more. This will dissipate heat on initial start-up and apply to avoid friction paper glazing!

Instruction Book (TOC)