lifting '86 K20 - rear axle load/braking sensor? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

toomanyproj · 07-28-2002, 03:51 AM

New to this forum... just registered today.

I'm putting a 6" Skyjacker Softride on my '86 K20 suburban this weekend. I noticed what appears to be some kind of braking valve on the frame (lines go thru it to rear drums) with a knee/lever type link to a bracket on the axle. I'm guessing with a load, the lever on the valve is moved 'up' and this puts more braking power/proportion to the rear wheels? So, if I lift it, this moves the lever on the valve WAY 'down'. Would this decrease my braking power/proportion to the rear? Lifting the truck would at least prevent the lever moving 'up' all the way...... Anyone else considered this?

Also, any tips on installing this would be appreciated.... Like, Do I need the sway bar drop kit? Or, I want the softest possible ride from my lift - anything I can do to ensure this?

Thanks

toomanyproj · 07-31-2002, 07:05 PM

C'mon guys... No replys? Is it because this a no brainer thing I should already know about or do I have a 'rare' load sensing brake valve option?

**JIMs70GMC** · 08-01-2002, 05:53 AM

It looks like from another post Stomper is also installing a 6" lift on an 86 K20, I wonder how he's handling the load sensor. Probably get more response at www.coloradok5.com , they are more for 73-91 solid axle Blazers, trucks and Burbs. Though they do have a nice 69-72 K5 forum.

07-28-2002, 03:51 AM	#1
toomanyproj Registered User Join Date: Jul 2002 Posts: 2	lifting '86 K20 - rear axle load/braking sensor? New to this forum... just registered today. I'm putting a 6" Skyjacker Softride on my '86 K20 suburban this weekend. I noticed what appears to be some kind of braking valve on the frame (lines go thru it to rear drums) with a knee/lever type link to a bracket on the axle. I'm guessing with a load, the lever on the valve is moved 'up' and this puts more braking power/proportion to the rear wheels? So, if I lift it, this moves the lever on the valve WAY 'down'. Would this decrease my braking power/proportion to the rear? Lifting the truck would at least prevent the lever moving 'up' all the way...... Anyone else considered this? Also, any tips on installing this would be appreciated.... Like, Do I need the sway bar drop kit? Or, I want the softest possible ride from my lift - anything I can do to ensure this? Thanks __________________ '86 K20 Silverado burb 4:10 40gal '94 Impala SS '62 Bel Air Sport Coupe

07-31-2002, 07:05 PM	#2
toomanyproj Registered User Join Date: Jul 2002 Posts: 2	C'mon guys... No replys? Is it because this a no brainer thing I should already know about or do I have a 'rare' load sensing brake valve option? __________________ '86 K20 Silverado burb 4:10 40gal '94 Impala SS '62 Bel Air Sport Coupe

08-01-2002, 05:53 AM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	It looks like from another post Stomper is also installing a 6" lift on an 86 K20, I wonder how he's handling the load sensor. Probably get more response at www.coloradok5.com , they are more for 73-91 solid axle Blazers, trucks and Burbs. Though they do have a nice 69-72 K5 forum. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm



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