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700R4 Extreme Duty Case Saver


Mfg Retail: $159.95
Cost From Us: $125.88
You Save: $34.07
In Stock
Our Part #: 74630CS
Manufacturer: Adapt-A-Case
Mfg Part # : A74761DAC
free shipping

Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.


Gm Heavy Duty Case Saver
Made in the USA

Performance Bolt In Design
Strongest Case Saver Ever Made

Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.

TH350 cases are no longer plentiful nor as cheap as they once were.  4L60E cases have many variations throughout the years.  Either application requires replacement when the case lugs are worn.   You can now save your case and improve on the original design!

A74761DAC fits like OE.  ter installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place.  Install the case snap ring.  Next, align outer lugs and set the retainer plate in.  Install and tighten six allen-head screws to 100-110 inch-pounds.

Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the early narrow TH350.

Used as a case saver or an upgrade, you’ve been introduced to the strongest-known center support ever available for these applications!

A New Twist on a ressurected idea.
As cases for these have gone up in cost , and become more difficult to find this has quickly become a hot item.
This Saver is designed to run the 700R4 1987 up wide sprag , which has better holding power.


Tech Tip:
After Installing the inner sprag race align the outer lugs and set into place.
Install the case snap ring.
Then Align the outer Lugs and set the retainer plate into position.
Install and tighten the 6 allen head screws to 100 Inch lbs and you're done.

Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.

TH350 cases are no longer plentiful nor as cheap as they once were.  4L60E cases have many variations throughout the years.  Either application requires replacement when the case lugs are worn.   You can now save your case and improve on the original design!

A74761DAC fits like OE.  After installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place.  Install the case snap ring.  Next, align outer lugs and set the retainer plate in.  Install and tighten six allen-head screws to 100-110 inch-pounds.

Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the early narrow TH350.

Used as a case saver or an upgrade, you’ve been introduced to the strongest-known center support ever available for these applications!

Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.

TH350 cases are no longer plentiful nor as cheap as they once were.  4L60E cases have many variations throughout the years.  Either application requires replacement when the case lugs are worn.   You can now save your case and improve on the original design!

A74761DAC fits like OE.  After installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place.  Install the case snap ring.  Next, align outer lugs and set the retainer plate in.  Install and tighten six allen-head screws to 100-110 inch-pounds.

Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the early narrow TH350.

Used as a case saver or an upgrade, you’ve been introduced to the strongest-known center support ever available for these applications!

your case and improve on the original design!

Phenomenal American Machine Quality


The last two images in the listing are side by sides of the Adapt  Piston (Left) vs a Failed Factory Piston (Right).
Our Part # 34912A-HD
Adapt Part # 34912AC
Customer Service is our Priority , Email us any questions you may have !
We do offer combined shipping for multiple purchases to Export Customers.
We would appreciate the opportunity to serve your transmission parts needs ! ! !

700R4 Transmission Center Support & Heavy Duty Case Saver
** Made in the USA By Adapt A Case **


A New Twist On A Ressurected Idea & Product

Taking A Closer Look This Is Actually Much More Than A Case Saver !

Will Fit All 1982 To 1992 GM Automatic Transmissions Below
700-R4 / 700R-4 / 7004R / 700-4R / TH700 / 4L60 / TH700R4

Must Use 1987 Up Wide Sprag & Inner Race - Will Not Work With Narrow Sprag
* Email Us For Assistance If Needed : Sales@CascadeTransmissionParts.Com *

So Many Benfits From Product That Translate Into Actually Extending The Unit And Internal Parts Life
If You're Building A Unit For High Performance, Or Anything That Demands Reduced Drag Here You Go.


Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.

TH350 cases are no longer plentiful nor as cheap as they once were.  4L60E cases have many variations throughout the years.  Either application requires replacement when the case lugs are worn.   You can now save your case and improve on the original design!

A74761DAC fits like OE.  ter installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place.  Install the case snap ring.  Next, align outer lugs and set the retainer plate in.  Install and tighten six allen-head screws to 100-110 inch-pounds.

Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the early narrow TH350.

Used as a case saver or an upgrade, you’ve been introduced to the strongest-known center support ever available for these applications!

As cases for these have gone up in cost, and become more difficult to find this has quickly become a hot item.
The holding strength to this upgrade is rock solid and has overwhelmingly much better holding power.

Performance Bolt In Design - Strongest Case Saver Ever Made !

This helps to virtually eliminate slop and tighten the clearances and snug things into place.
Even if your case is good if you seek to almost completely eliminate vibration & extend the unit life this is for you.
We have the opinion this may actually reduce power lost with the end play set correctly and precise;
we think this should actually improve fuel mileage however very minor but worth mention.


Installing Tech Tip:
After installing the inner sprag race align the outer lugs and set into place assembly into place inside the case.
Install the case snap ring; then align the outer lugs and set the retainer plate into position.
Install and tighten the 6 allen head screws to 100 Inch lbs and you're done.

Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.

TH350 cases are no longer plentiful nor as cheap as they once were.  4L60E cases have many variations throughout the years.  Either application requires replacement when the case lugs are worn.   You can now save your case and improve on the original design!

A74761DAC fits like OE.  After installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place.  Install the case snap ring.  Next, align outer lugs and set the retainer plate in.  Install and tighten six allen-head screws to 100-110 inch-pounds.

Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the early narrow TH350.

Used as a case saver or an upgrade, you’ve been introduced to the strongest-known center support ever available for these applications!

Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea.

TH350 cases are no longer plentiful nor as cheap as they once were.  4L60E cases have many variations throughout the years.  Either application requires replacement when the case lugs are worn.   You can now save your case and improve on the original design!

A74761DAC fits like OE.  After installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place.  Install the case snap ring.  Next, align outer lugs and set the retainer plate in.  Install and tighten six allen-head screws to 100-110 inch-pounds.

Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the early narrow TH350.

Used as a case saver or an upgrade, you’ve been introduced to the strongest-known center support ever available for these applications!


Phenomenal American Machine Shop Craftmanship

Photo Is Of The Actual Part Shipped With This Purchase

Our Part # 74630CS
Adapt Part # A74761DAC

We would appreciate the opportunity to serve your transmission parts needs ! ! !

Cascade Transmission Parts , Inc.
All Rights Reserved ®


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