Power Steering Conversion???

[nitrojunkie383]

I am working on a side project to help my brother out with his 70 K5 Blazer.
The blazer currently has the manual gearbox and we are wanting to convert it to a power setup.

First question: Will a later model power gearbox off 4x4 truck work for this application? Say like a 78 model truck with a Saginaw, GM #7802644.

The reason why I ask about the 78 model is because we have swapped the axle from this truck to this blazer. The 78 had a 3/4 ton setup with a 14FF in the rear and a 10bolt up front. We have already bolted everything up with the 10bolt and have connected the pitman arm and everything seems to be fine.

Second question: Is there anything that we need to consider when looking for the power steering pump for this application.

[71jimmy]

Don't know about your '78 gearbox.

but, you need to consider wether you have a short or long water pump. this will determine wether your belt will line up properly on the pulleys.

[nitrojunkie383]

The Blazer has a short water pump on it. I wasnt too concerned with the pump as much as the gear box itself. I am not sure about the mounting configuration or the difference between a 2x vs a 4x gearbox.
I guess I am wondering if a later gear box would work on these 1st gen blazers or do we need to find a gearbox off of a 67-72 truck/blazer.

[coyote72]

Please note that you must be a supporting member to post classified items. This includes but is not limited to What Its Worth, Want To Buy, Want To Trade, and For Sale. Please consider supporting the forum by subscribing. Further information on the subscription levels available are located here

If you need any further assistance with that please contact any Admin for help.

[69TowRig]

That PS box works fine, beware that manual box frames did not always have a brace behind the box and the frames are notorious for stress cracks at the box. Consider getting an aftermarket brace. I found someone cutting frame chunks and managed to get a factory brace for mine.