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Transmission Tools and Components

BET Engineering specializes in GM differential rebuilds, GM servos, transmission rebuild tools and other parts. Need a drop in billet servo for a 700-R4 or 4L60E series? We have what you need.

Upgrade your 700R4, 4L60, 4L60E or 4L65E with an increased hold servo!

G80s and other POSI units

In addition to our GM differential rebuilds, we also offer a GM locking differential, posi-traction carrier rebuild service. We can repair your original G80 unit, so your carrier shimming will not change. Send us your core for evaluation or purchase a rebuilt differential from our online store at a fraction of the cost of a new one.

We Buy Differential Cores!

Do you have a retired Gov-Loc or other differential in your garage? We'll pay $75 for a rebuildable unit, contact us for more information.

G80 Differential Rebuild Service

BET Engineering can rebuild your troubled G80 unit. We work with G80 differential units that range from the small 7.5 inch unit all the way up to the 11.5 inch. In most cases, we can even install new GM components.

Contact us for more details.

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