Speed Racer build - '85 4runner, custom steering, dual trannys + same as everyone. - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 02-10-2010, 10:29 AM   #1 (permalink)
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Speed Racer build - '85 4runner, custom steering, dual trannys + same as everyone.

Well, since I have been lurking here for 5 years now, I thought I ought to get a build thread going.
This is the "Speed Racer" build because of how increadably slow my 4runner will go once the dual trannys are in and how slow I get work done on this thing.(Because I'm busy and am not in the garage much, not because I don't want to be)
Current Specs:
RUF
63" Chevys
FJ rotors, IFS Calipers and hub bodies
1" T100 MC with dual diaphragm
Cut rear fenders
Square front driveshaft(now out)
Dual Trannys
Winch
2x E-lockers(Need to finish wiring)
Custom steering arms, IFS Steering box
Taurus Alternator

Stuff to put in:
Finish OBA
Dual Batteries
Rear Disc Brakes(Taurus Calipers)
Build front and rear bumpers
New seats
New driveshafts to go with the dual trannys(One down, one to go)



12/1/05
I bought my 4runner for $1500

Ad: 1985 4Runner 22RE 5sp Solid Axle Denver, CO $1500
http://board.marlincrawler.com/index...3039#msg193039






These pics were from it’s break in wheeling trip to Slaughter House Gulch sporting some sweet 29” tires and no lift.

I DD this 4runner all through school and lived in pipe dreams of what was planned.
I had designed and started to machine a custom set of steering arms prior to buying the 4runner, along with picking up a set of 63” Chevy rear springs.

I designed the steering arms to put the tie rod behind the axle and include the Ackermann angle(front wheels turn at different angles to have the same turning point and no tire scrub).(Still not on the truck)






Here are the finished arms.







Here is a link to the “build thread for these arms
https://www.pirate4x4.com/forum/showthread.php?t=548270


After driving the 4runner in stock form for 2 years, I finally lifted it about 4”.



I built a set of RUF(Rears up front) leaf springs with a set of ’83 and ’88 rears along with extended shackles and used the Chevy springs in the back with double shackles(You can see the death and blood, now, can’t you?).
I built a very unbalanced square front driveshaft with 16” of slip



Used FJ80 rotors, IFS hubs and calipers to widen my front axle. I also installed a T100 1” master cylinder and dual diaphragm brake booster.



Put in Rancho front shocks made for a lifted JEEP Cherokee(That’s right, I now have both Chevy and Jeep parts on it)
I also swapped in an IFS rear axle.

So, I wheeled with it open-open, single stock 2.28 t-case, running 32x11.5 MT/Rs. I ran OCG twice without much trouble, China wall, Barbour Fork a few times and Grizzly Lake(but had to be winched up the first obstacle).
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Old 02-10-2010, 10:29 AM   #2 (permalink)
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Here are some of the great hook-ups during this very slow build.
Pete Brody gave me a prototype gas tank skid plate to bash on.



I got a great Christmas present from Jim Beedon at Solid Rock Off-Road in Castle Rock, CO by winning his giveaway for a set of sliders.






I finally trimmed my rear fenders to get some tire room and get rid of a BUNCH of rust.






I also started a set of half doors while I was cutting sheet metal anyway.



Now, is where we get closer to present.
I have been doing a ton of research on dual trannys and have designed an adapter to bolt an L-52(because of its length) and a W-56 together.





Over 2 years, I tore a few trannys apart to build a couple good ones to use for this project.
This is approximately where the shifter will end up.


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Old 02-10-2010, 10:30 AM   #3 (permalink)
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Next addition to the list of things to install, was a XRC8 winch, mounting plate and a pair of almost brand new E-lockers that I was able to pick up for $150/ea.




Well, I pulled the tranny and t-case and got the dual trannys temp installed for cross member mounting and floor modifications.



I cut up the tranny tunnel, horseshoe cross member and got the FROR center section bolted on to get dims for the new cross member.










Despite popular opinion, my drive shafts will almost swap front to back. The front will be 45, and the rear will be 31.25.





I will be making a cross member similar to this.



Well, I had extra steel in my garage and since I have to pull both axles for the e-locker install, I decided to make some frame jack stands.

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Old 02-10-2010, 10:31 AM   #4 (permalink)
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I lent a buddy my 32s for emissions and thought Id see what my 4runner would look like with 37s. You can see the axle about 4 below the wheel hole.

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Old 02-10-2010, 10:39 AM   #5 (permalink)
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Those steering arms look great. I've been thinking about drawing up and machining some 6 stud arms to use with 6 stud knuckles. Who knows if i would ever get the motivation to machine them though.

Yours must have taken some hard work and it sure shows. One question, how did you cut the taper for the cone washers? Did you have to get a tapered end mill or what? Everything looks awesome.
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Old 02-10-2010, 10:48 AM   #6 (permalink)
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Those steering arms look great. I've been thinking about drawing up and machining some 6 stud arms to use with 6 stud knuckles. Who knows if i would ever get the motivation to machine them though.

Yours must have taken some hard work and it sure shows. One question, how did you cut the taper for the cone washers? Did you have to get a tapered end mill or what? Everything looks awesome.
I had a guy wire EDM them.
He was good friends with the machine shop manager at school and did it pro-bono.
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Old 02-10-2010, 06:36 PM   #7 (permalink)
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Glad to see your still doing dual trannies. I still get people asking me if I sell them.
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Old 02-10-2010, 06:44 PM   #8 (permalink)
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Those 37s look a lot like mine.......................................
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Old 02-10-2010, 06:44 PM   #9 (permalink)
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I actually like the skid for the stock gas tank...is someone selling those?
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Old 02-10-2010, 06:55 PM   #10 (permalink)
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x2 on the gas tank skid....looks like a cool build!
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Old 02-10-2010, 07:59 PM   #11 (permalink)
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Me too on the gas tank skid... I would like one as well!!!!
Love the progress, and innovations you've made on your truck!!!!!
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Old 02-10-2010, 09:16 PM   #12 (permalink)
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I actually like the skid for the stock gas tank...is someone selling those?
Quote:
Originally Posted by 89silverpu View Post
x2 on the gas tank skid....looks like a cool build!
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Me too on the gas tank skid... I would like one as well!!!!
Love the progress, and innovations you've made on your truck!!!!!
I sent Pete a link to this thread. I don't know if he is selling these right now or not. I'll try to find out.
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Old 02-10-2010, 09:17 PM   #13 (permalink)
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Those 37s look a lot like mine.......................................
Yours? Never!
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Old 02-10-2010, 09:18 PM   #14 (permalink)
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Glad to see your still doing dual trannies. I still get people asking me if I sell them.
I ended up having to throw two tranny halfs on a CMM and pinpoint all the pins and bolt holes. I only did a 5* rotation because of interference.
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Old 02-10-2010, 09:26 PM   #15 (permalink)
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Inspirational work. I likey! Keep on truckin.
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Old 02-10-2010, 10:33 PM   #16 (permalink)
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right on man for stepping out the norm and doing dual trans, thats awesome and all those forward and reverse gears is gettin me all tingly inside
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Old 02-10-2010, 10:43 PM   #17 (permalink)
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this build is SICK.
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Old 02-11-2010, 01:16 AM   #18 (permalink)
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I've not seen a dual tranny setup, how would you shift through the gears on the street? Would you be able to leave one in 4th or 5th and drive one like normal? Or would you have to go 1st, 1st, 2nd, 2nd and so on?
I'm assuming that you use the second tranny as a reducer and less like a full time tranny. Am I correct?
Its an awesome idea! I just bought an 86 4runner 22RE, but have IFS. As soon as I get home its getting SAS'd and the back will be on leafs. I love your idea for the steering tie rod. Do you know if these are available in retail? I do not possess the knowledge nor the tools to machine a pair of these myself. In the military, all of our large solid front axle trucks run the tie rods behind the axle. I've only ever bent one, but we hit a 2 foot step up doing 35mph which made both front tires of our MRAP toe in. I like how you have it above the DL and keep it straight Im sure it'll be alot stronger that way. Love seeing what you are doing with the runner. Helps inspire me!
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Old 02-11-2010, 01:29 AM   #19 (permalink)
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I thought the dual tranny thing was found to be too weak and guys were always breaking the second trans any way to avoid it ?maybe an r serries behind the w?
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Old 02-11-2010, 06:51 AM   #20 (permalink)
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Quote:
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I actually like the skid for the stock gas tank...is someone selling those?
Quote:
Originally Posted by 89silverpu View Post
x2 on the gas tank skid....looks like a cool build!
Quote:
Originally Posted by sickwillygump View Post
Me too on the gas tank skid... I would like one as well!!!!
Love the progress, and innovations you've made on your truck!!!!!
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Originally Posted by 4runner Freak View Post
I sent Pete a link to this thread. I don't know if he is selling these right now or not. I'll try to find out.
Here is Pete's info for the skid plates.

PS Fabrication
Peter Brody
[email protected]

Shoot him an email.
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Old 02-11-2010, 06:59 AM   #21 (permalink)
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I've not seen a dual tranny setup, how would you shift through the gears on the street? Would you be able to leave one in 4th or 5th and drive one like normal? Or would you have to go 1st, 1st, 2nd, 2nd and so on?
I'm assuming that you use the second tranny as a reducer and less like a full time tranny. Am I correct?
I am going to use the front tranny as the reducer in order to minimize the added torque put into the second tranny. 4th gear is 1:1, 3rd is 1:1.45, so front tranny in 4th if I'm running small tires, and 3rd if I'm running big tires.

Starting off in 1st, 1st would be ridiculously slow for the street(1:66.8)
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Old 02-11-2010, 07:02 AM   #22 (permalink)
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I thought the dual tranny thing was found to be too weak and guys were always breaking the second trans any way to avoid it ?maybe an r serries behind the w?
The only breakage I've heard of was with messed up trannys to begin with.
Unbreakable broke his frame before he messed up any trannys.
Like I said above, I will be using the front tranny as the "range" tranny and shift normal with the back tranny.
We'll see how well it works.
I'm not too hard on the skinny petal when wheeling so hopefully it will last a long time.

And yes, a R151 behind a W56 would be pimp.
I am using the L52 up front because it it ~5" shorter then a W-56.
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Old 02-11-2010, 07:08 AM   #23 (permalink)
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Great build, should be fun to mess around with all that gearing! 100 mph in reverse...!
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Old 02-11-2010, 07:27 AM   #24 (permalink)
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Nice build, Ive always wanted to go faster in reverse
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Old 02-11-2010, 07:39 AM   #25 (permalink)
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Great build, should be fun to mess around with all that gearing! 100 mph in reverse...!
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Nice build, Ive always wanted to go faster in reverse
At 5K RPMs, I could theoretically go 130mph in R/5th gear!
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