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BlazeN8's 1986 4Runner Build-Up Thread

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Old 02-05-2010, 04:19 AM
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BlazeN8's 1986 4Runner Build-Up Thread

"Leave it to Deaver"

I struck gold in my search for a "low buck" rear leaf spring for my 1986 4 Runner 4x4. I was looking for 3" of lift to match the front Blazeland Long travel. I was aware from word of mouth, and from browsing the internet, that Deaver offers a "long travel" Stadium leaf spring pack, but it involves a new 61-1/2" long leaf spring pack and requires some custom work to install. I suspected there might be some other options so I dropped by the shop. I met with Jeff Crosby the Spring Designer at Deaver. The Stadium spring pack (Deaver part #F67) would be awsome, but Jeff agreed it is little more involved and not a simple bolt on install. He had some other ideas for something less expensive and 100% bolt on to match the budget friendly Blazeland concept up front.
Enter in the Deaver "MiniPack" This is designed around the stock leaf springs. Jeff's plan was to dial in about 2" of lift by removing the overload leafs and installing a progressively decreasing set of smaller leafs. Then get another 1" of lift by installing longer shackles. It took Jeff a few days and some R&D on my 4 Runner, but it came out AWSOME. Read the write up on my install. Enjoy!




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Old 02-05-2010, 04:21 AM
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As with all installs safety first. A level surface, wheel chocks, an adequate range floor jack, and a sturdy set of jack stands is a must. Jackstands need to be capable of at least 28" height to support the vehicle by the frame, and let the rear axle drop out completly. What I am removing is stock set of springs with an add a leaf and a set of 2" spacer blocks. I have some respectable shocks, 5100 Bilsteins for a 4" lifted Toyota that I will be re-using. The shocks are long enough for drop out but are too long for compression without the 2" blocks and a bump stop spacer. New shock mounts will eventually be installed.

Photo:B1 Rear axle drop out
Photo:B2 Remove lower shock bolts (17mm)
Photo:B3 Swing shock out of the way




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Old 02-05-2010, 04:22 AM
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Photo:C1 Remove parking brake cable pin
Photo:C2 Set aside the hardware for the parking brake cable



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Old 02-05-2010, 04:23 AM
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Photo1 Jack placement at u-bolt axle plate
Photo2 Remove u-bolt nuts (22mm deep socket)
Photo3 Lower jack let tire rest on the ground




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Old 02-05-2010, 04:24 AM
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Photo:E1 Remove u-bolt and bump stop assembly
Photo:E2 Remove blocks (if applicable)
Photo:E3 Set u-bolt assembly off to the side




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Old 02-05-2010, 04:25 AM
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Photo:G1 Remove shackle nuts and washers (19mm)
Photo:G2 Remove shackle plate
Photo:G3 Remove shackle




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Old 02-05-2010, 04:27 AM
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Photo:H1 Let spring rest on axle
Photo:H2 Recover old bushings from spring and frame eye
Photo:H3 Set shackle assembly aside




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Old 02-05-2010, 04:28 AM
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Photo:I1 Remove front spring eye nuts and lock washers (19mm socket and 19mm box wrench)
Photo:I2 Remove Bolt and free spring from frame
Photo:I3 Remove spring thru wheel well




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Old 02-05-2010, 04:29 AM
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Photo:J1 Dissasemble stock leaf spring pack
Photo:J2 Remove Front eye bushing if planning to replace. This is pressed in, so it needs to be pressed out.
Photo:J3 Oveload leaf assembly and hardware




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Old 02-05-2010, 04:30 AM
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Photo:K1 Prep MiniPack for install to re-furbished and freshly painted stock main leafs
Photo:K2 Lower Main pack onto MiniPack and tighten center pin
Photo:K3 Trim excess center pin bolt




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Old 02-05-2010, 04:31 AM
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Photo:L1 Install spring alignment perch hardware
Photo:L2 Spring is now assembled
Photo:L3 Items to be installed




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Old 02-05-2010, 04:33 AM
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Photo:M1 New eye bushing
Photo:M2 Use plenty of PreLube
Photo:M3 Front eye assembled




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Old 02-05-2010, 04:34 AM
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Photo:N1 Bolt front spring eye to frame
Photo:N2 Lube shackle assembly
Photo:N3 Install shackle assembly




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Old 02-05-2010, 04:35 AM
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Photo:O1 Install new U-bolts and Bumpstops
Photo:O2 Jack axle up to spring
Photo:O3 Install U-Bolt washers and nuts




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Old 02-05-2010, 04:36 AM
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Photo1 Measure exposed bolts tighten to equal length
Photo2 Jack up vehicle, remove jackstands, lower to ground
Photo3 Final Torque fasteners, your done.




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Old 02-05-2010, 04:36 AM
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There are still some details for me to take care of like removing the parking brake extension brackets and adjusting the brake proportioning bracket. I will also be removing the additional bump stop spacers. At some pint I will need re-locate and install new upper shock mounts further up the frame. As it is now the shocks are acting like the bump stops (not a good idea) Stay tuned for fine tuning.
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Old 02-05-2010, 05:51 AM
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we need a video nate
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Old 02-05-2010, 06:23 AM
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Nice. What is the cost of the "low buck" spring kit?
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Old 02-05-2010, 08:31 AM
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The cost is as follows:

$196.00 MiniPack
$8.50 Front Eye Bushings
$6.38 Bushing Seeve
$22.88 Rear Shackle / Frame bushings
$52.80 U-Bolt kit
$25.07 CA sales tax

$311.63 Total

Not bad to freshen up an old set of springs, gain 3" of lift, and obtain a supper cush ride. I'll get back to you on the wheel travel measurments. The ride quality is excellent on the street. I'll have to take care of the shock mounts befor I can get a feel for how it performs on the trail and in the whoops.
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Old 02-05-2010, 08:39 AM
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Oh, I forgot to add in the cost for the extended length shackles. Since I built them, the cost was FREE. Well the cost for a 5 foot section of cold roll steel bar cost me $6.74 and I only used about half of it. I'll post some pictures of how I made the shackles in a few.
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