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Have you talked to Barry at Watt's Mack?

They had access to two valve Mack engine brake kits.

If they can't help, I have a brand new (still in the boxes)

TEC kit for the two valve Mack engine that I might consider

selling. It does not fit in my B-67, and I don't have any immediate

use for it.

The actual Jacobs engine brake for these engines has been out

of production for some time. The TEC brake is a direct replacement.

Paul Van Scott

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Have you talked to Barry at Watt's Mack?

They had access to two valve Mack engine brake kits.

If they can't help, I have a brand new (still in the boxes)

TEC kit for the two valve Mack engine that I might consider

selling. It does not fit in my B-67, and I don't have any immediate

use for it.

The actual Jacobs engine brake for these engines has been out

of production for some time. The TEC brake is a direct replacement.

Paul Van Scott

Paul why will it not fit you B model is because not enough clearance under the cab? glenn

glenn akers

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Glenn -

The B-67 doesn't have the clearance under the firewall.

I could raise the cab an inch or so with spacers - but I don't really

gain that much with an engine brake on this truck anyway.

I do have a new (to me) ETZ-676 (283 hp) that the Jake brake

would be real good on, but I need a truck for the engine to go into.

Thermodyne B63 -

I'll send you a Personal Message right now.

Thanks,

Paul Van Scott

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