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05-05-2008, 10:34 AM
| | Addict | | Join Date: Sep 1999 Location: Florida, Orange (Orlando)
Posts: 463
| |  Load Sensing Proportioning Valve
Anyone know where I can get a LSPV for a 1984 Truck 4WD, except from the stealership ? 
__________________
JeffB
84 ExtCab SR5, Detroit (Rear), LCE Headers,
DOA Cam (C270), Weber (32/36), AllPro Bumpers,
V6 Brake Upgrade
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05-05-2008, 03:26 PM
|  | Keyboard Implanted | | Join Date: Nov 2001 Location: SF Bay Area, California, USA
Posts: 4,162
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Quote:
Originally Posted by JEFFB  Anyone know where I can get a LSPV for a 1984 Truck 4WD, except from the stealership ? | Junkyard or Car-Part.com--Used Auto Parts Market for a used one.
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05-06-2008, 08:01 AM
| | Addict | | Join Date: Sep 1999 Location: Florida, Orange (Orlando)
Posts: 463
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Quote:
Originally Posted by 4Crawler | Roger thanks for the link, I would have to contact them since they do not list the part in their parts list breakdown. I would have to question the condition of the part since it is used. I found a new part from a toyota discount parts house at an acceptable price. 
Has anyone ever rebuilt a LSPV, can they be rebuilt ?
I am definently keeping my old one.
Finding older toyota's in junk yards in my area is usally a waste of time, they are sent oversea's as soon as they come in.
__________________
JeffB
84 ExtCab SR5, Detroit (Rear), LCE Headers,
DOA Cam (C270), Weber (32/36), AllPro Bumpers,
V6 Brake Upgrade
Last edited by JEFFB; 05-06-2008 at 08:03 AM.
Reason: Additional info
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06-25-2008, 10:40 PM
| | | Lspv
Front Range Off-Road makes a nice aftermarket adjustable one. Front Range Off-Road Fabrication
Don't have one myself, but some guys over at Pirate do. It looks like you mount it up by the master cylinder and it's adjustable, too.
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08-06-2008, 01:43 AM
| | Old Hand | | Join Date: Jan 2002 Location: Sacramento, California
Posts: 975
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Is yours toast? Serviceable? I think I remember reading somewhere about servicing them. Maybe 4x4wire.
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1990 K1500 Long Bed,Auto,350,add-a-leaf/t-bar,2" PA Body Lift,K&N,Magnaflow, 285 BFG T/A KO, York OBA, 14 bolt SF w/ Detroit
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08-06-2008, 01:13 PM
|  | Aprentice | | Join Date: Nov 2001 Location: Irving, TX
Posts: 84
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I removed my LSPV and put in an adjustable unit by the Brake Booster in the engine bay.
It took a little while to adjust it properly, but it is now dialed in.
I bought it from Summit Racing.
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10-15-2009, 09:26 AM
| | Newbie | | Join Date: Sep 2009 Location: Delaware
Posts: 1
| |  LSPV Problems
I've pulled my LSPV cleaned it and got it working properly. Seems most of the problem is right at the very bottom where the boot for the pin that contacts the cross bar is. Moisture builds up inside the boot and causes corrosion which locks the valve in either the compressed position (heavy load) or no load position. Carefully disassembling and cleaning the valve should work, but be forwarned if you're not mechanically inclined you could cause more damage and down your vehicle until you can purcase a new one or loose your brakes unexpectedly causing an accident. This is not a task for the beginer!
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10-16-2009, 01:25 PM
| | Keyboard Implanted | | Join Date: Nov 2001 Location: SF Bay Area, California, USA
Posts: 4,162
| |
Quote:
Originally Posted by JEFFB Roger thanks for the link, I would have to contact them since they do not list the part in their parts list breakdown. I would have to question the condition of the part since it is used. I found a new part from a toyota discount parts house at an acceptable price.
Has anyone ever rebuilt a LSPV, can they be rebuilt ?
I am definently keeping my old one.
Finding older toyota's in junk yards in my area is usally a waste of time, they are sent oversea's as soon as they come in. | I finally pulled mine if anyone is looking for a working used one. I put in the rear discs and currently have no prop. valve installed but will be adding the Wilwood valve if needed.
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