• To ALL forum users - As of late I have been getting quite a few private messages with questions about build ups here on the forum, or tech questions about your personal project. While I appreciate the interest, sending me a private message about these topics distracts from, and undermines the purpose of having a forum here. During the day I wear many hats as a small business owner-operator and I work tirelessly to provide the absolute best service possible to you, our valued customer. When I created this forum I rounded up some of the best minds I knew so that any tech question you might have could be asked and answered by either myself or one of my highly experienced moderators, this way the next time this same question is asked the answer can be easily found and utilized by the next IH enthusiast having the same question. This allows me the freedom to run the day to day operations of the business and minimize the impact to shipments and shop activities that these distractions can cause. It is of the up most importance for me to complete the daily tasks in order to best take care of you our customer, all the while providing you a forum to get the level advice and input you have come to expect and deserve from the premier IH shop in the country.

    So with that I ask that anyone with a question about one of our build ups or a general tech question to please use the forum as it was intended. I am absolutely available by telephone to answer your questions as well but at times may direct you back to our website to better field your question or questions. Most other private messages I will be glad to answer for you.

    Thank you for your understanding.

    Jeff Ismail

'74 Loadstar 1600 dump truck brake help


New member
We have a 74 IH Loadstar 1600 single axle dump truck on our ranch with no brake master cylinder. Its a 345 AMC, 4spd auto, manual brakes, non-power. Any idea where I can get a master cylinder? Its a single banjo fitting port on front drivers side of the cylinder and a 3 bolt mounting flange on the firewall. Any help is greatly appreciated.


Active member
Bring it to a good auto parts store and they can look it up. Follow the line from the MC and I will bet it goes to a hydro boost unit under the drivers seat. They are usually what goes out. Last one I bought was around $400 20 years ago.


New member
We found the banjo bolt, mounted the new master cylinder. Realized the hydro vac booster was junk, so got a new one from
Napa. Problem is that now the new booster has both 1/2-20 threaded banjo ports on input and output. Old one had a 7/16-20 banjo on the output, so we have to order another banjo. But the brass banjo block/swivel hole is to small for a 1/2-20 banjo and the rubber flex line going from the rubber booster end crimped fitting broke off from rust. So I need to find that hose that goes to a brass Tee on the frame. If anyone knows the part number, any help is appreciated. Its all 1/2-20 inverted flare, with some type of bulkhead fitting type on the frame side going into the tee. If I can find a hose with a banjo block type end for that 1/2-20 banjo bolt and a swivel long threaded 1/2-20 inverted flare section to go into the tee, that will eliminate the need for the brass adapter block on the output of the booster.