83 SPX, do I have a load proportioning valve or not?

[zgferguson17]

As the title suggests, I wondering if I have a load proportioning valve in an 1983 SPX 4x4. I can't seem to find it, and if I do have one, I'd like to inspect/repair/rebuild/replace if necessary.

[ragragtimetime]

http://www.mightyram50.net/vbulletin/showthread.php/4338-load-sensing-proportioning-valve-amp-spring

I don't believe you have 1 (86 has one http://www.mightyram50.net/vbulletin/attachment.php?attachmentid=9130&thumb=1&d=1397182456but the 83 http://www.mightyram50.net/vbulletin/attachment.php?attachmentid=11890&thumb=1&d=1415744488does not)