The Siebert Family Historical Truck Foundation

The Siebert Family Historical Truck Foundation Preserving commercial trucks and equipment that helped build the United States of America 🇺🇸🇺🇸🇺🇸

07/09/2026

Coolant flush and change on the 69’ R685 Mack. 57’ B61 needed fresh air.

06/28/2026

Pulled the old 39’ Mack EQU out of storage for a breath of fresh air. In need of a serious wash down.

This is a beautiful work of art. 1958 White 9000. Finally drove her up to Stuart FL from Jupiter. What a smooth running ...
06/20/2026

This is a beautiful work of art. 1958 White 9000. Finally drove her up to Stuart FL from Jupiter. What a smooth running Cummins. Straight and steady on 95. She stayed right in her lane at 60 mph. Getting use to this trans. Definitely beyond the Mack stuff I’m use too, but learning. Very cool truck to drive!

Newest member of the family. Early 70’s R685 steel nose. I have a concept 250 anniversary photo alongside.
05/31/2026

Newest member of the family. Early 70’s R685 steel nose. I have a concept 250 anniversary photo alongside.

Getting the wood door frames wrapped up for the 52’ 240 Brockway. White ash supplied by a mill in Upstate NY who’s Grand...
05/17/2026

Getting the wood door frames wrapped up for the 52’ 240 Brockway. White ash supplied by a mill in Upstate NY who’s Grandfather worked for Brockway. Then fabricated by my carpenter neighbor who lived near Cortland NY where Brockways were built. If anyone needs doors made, he’s got everything documented and patterned to make more. The 54’ 260 Brockway doors are already inline. Making progress!

1979 Cadillac Coupe Deville
01/04/2026

1979 Cadillac Coupe Deville

1952 Brockway
01/04/2026

1952 Brockway

1946 White 112
01/04/2026

1946 White 112

1954 Brockway 260XW
01/04/2026

1954 Brockway 260XW

1968 Mack F763st
01/04/2026

1968 Mack F763st

Address

2875 Jupiter Park Drive
Jupiter, FL
33458

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