hurley842002

Awesome job man. I'm suprised no one has chimed in about "should have done an SAS". I think its awesome, seems like most are agreeing.

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1986 4runner
31" mt's
aftermarket shackles
Custom front bumper/winch
Light bar/auxilary lighting
Rear Detroit

future mods:

33's maybe 35's, 5.29's, Rear bumper with tire/jerry can,highlift mounts, sliders. Conquer with the IFS until I can't conquer anymore and then do an SAS.

caligula455

thanks. i could always SAS later, but i have enough on my plate for the moment and all this stuff was designed by Toyota to fit. expect another post with the rest of the front end work tomorrow.

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2000 Tundra V8 - 4wd conversion thread - pictures

hurley842002

Yeah, hope you have a large plate. I'm looking forward to the updates

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1986 4runner
31" mt's
aftermarket shackles
Custom front bumper/winch
Light bar/auxilary lighting
Rear Detroit

future mods:

33's maybe 35's, 5.29's, Rear bumper with tire/jerry can,highlift mounts, sliders. Conquer with the IFS until I can't conquer anymore and then do an SAS.

caligula455

started the day with another trip to autozone, got a ball joint separator and got to work. got the 2wd spindles off pretty easy with the new tool.

here are the tacoma spindles next to the tundra spindles. you can see difference in dust shield size.



the CV axles snapped right into the front diff


tacoma spindles went on next


wheels on, axle nut tightened


finally, here is the end result. still need to put oil in the diff before i drive it.

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2000 Tundra V8 - 4wd conversion thread - pictures

caligula455

just a quick update. filled the front differential with amsoil severe gear 75-W140 and took it for a test drive.

It drives like a new truck! the new upper ball joints helped with some rattling i was feeling over bumps and in general everything feels good and tight, no leaks, squeaks, rattles, etc. cant wait to get those wheels powered.

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2000 Tundra V8 - 4wd conversion thread - pictures

bigtrucknwheels

so when does the transfer go in?

looks great, by the way. I'm jealous of your mechanical abilities..

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1990 Toyota 4Runner SR5 V6. 4wd/V6/Auto. Complete Part Out! Click or PM!

1990 Toyota Pickup Xtra Cab DLX. 4wd/V6/Auto

1989 Toyota Pickup Std. Cab DLX. 4wd/I4/5spd. FOR SALE SOON!

caligula455

transmission and transfer will probably go in next but I may do the re-gear first while i get all the electrical sorted out. the transmission and transfer case is a pretty big job though particularly since i'm doing it by my self and in my driveway. buying or making a transmission jack is probably in order for that one.

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2000 Tundra V8 - 4wd conversion thread - pictures

zlathim

You can usually rent a good tranny jack for $30-$40 per day.

__________________
Do you think Einstein walked around thinking everyone was a bunch of dipsticks?
Idiocracy (edited for family friendly viewing)

TexanTaco

I can't wait to see the next step, I'm hooked! And huge props for doing this yourself, wanna do the same thing to my Tacoma next?! You will be a 4wd conversion expert by then!

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2004 Tacoma Xtra Cab/PreRunner/SR5/TRD

caligula455

I picked up some Mickey Thompson Classic wheels with Toyo Open Country AT tires this weekend. The wheels are 16x8 3 5/8" BS and the tires are 285/75/16. two tires have some tread left but the other two are worn very unevenly and one has a big screw in it so they are junk. i guess i'll get two more and see how long the two used ones last then replace them as well. i want to get them remounted with the lettering on the inside anyway.

The wheels are very clean though, worth the price just for them.



The uneven ones look like this


the good ones are a little better, not a whole lot of tread left though.

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2000 Tundra V8 - 4wd conversion thread - pictures

caligula455

I got my 4wd center console bezel over the weekend. It's from an '01 with wood grain trim. The good news is that the harness plugs are the same as my stock bezel, the bad news is that upon closer inspection they don't match my wiring diagram so i have to find which wires are for the buttons.

There is a wire for every pin on the connector though, so it looks like the wires to the gauge cluster 4wd and 4lo lights are in place already, i'll have to pull the gauge cluster to confirm.

here is the 2wd bezel by the clock


here is the 4wd bezel


i might already have the wires in my harness that go from the gauge cluster to the 4wd ECU, I'll have to investigate that as well.

installed in the truck (the tinted plexiglass below the head unit looks much better in person with out the flash shining through it)


anyone have the wiring diagram for a '00-'04 tundra?

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2000 Tundra V8 - 4wd conversion thread - pictures

caligula455

I had a really good conversation today with Jim at Inchworm. I'm picking up a used VSS from one of his tacoma transfer cases and I was asking if he had harnesses laying around for some of the other plugs i need. We came up with the idea of swapping the 2/4 and hi/lo switches from my case to the tacoma style switches which have a wiring lead before the connector.

here is what i have:


here are the switch i want to use


I have bosses up there for those switches but the all electric transfer cases don't have upper shift rails as it is all shifted by the motor so I cant put them there. Hopefully they will fit where my switches are now. Jim was saying that the early vs late style switches have different thread sizes. Also there are two sizes of VSS gears, i'm guessing i need the later style. If you get them wrong you either don't engage the teeth or grind them up.

This is an '05 tundra transfer case, note that there are no top rails at all. Also note that by '05 they are using the abs sensors to generate the speed signal so there is no VSS, though they still have the gear to drive a VSS with a cover over the hole.

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2000 Tundra V8 - 4wd conversion thread - pictures

caligula455

Here are where the electric transfer case switches are located


Here are the switches themselves, different connector on top, but same measurements




Can anyone confirm the depth of the shift rail switches is the same?

Here is the plug from where the manual shift rail switches would go in the spot where my switches are, same threads.


Here you can see straight through to the other side of the case, definitely no shift rails in there

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2000 Tundra V8 - 4wd conversion thread - pictures

caligula455

After finding all the pins in place for the 4wd dash buttons, i was encouraged that more of the 4wd wiring was already in my harness but I got more than i was hoping for. It turns out that the transfer case controller is already wired in!!

My guess is there is a connector somewhere by the transmission for the transfer case harness and one somewhere in the engine compartment for the ADD motor harness. If i had the right wiring diagram i would know exactly where the connectors are.

It has also become very obvious that the wiring diagrams i've been looking at are not the same as what i have. I've been looking at the '05 tundra which i realize is different, but since it uses the same 4wd system I thought it would be close enough.

Here is the 4wd controller plug under the passenger kick panel


Here is a closeup of the wiring colors and the connector

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2000 Tundra V8 - 4wd conversion thread - pictures

bigtrucknwheels

this is exciting!

though I am glad mine is a fully mechanical 4wd system, thats a lot of wires and a lot of sensors and parts to fail...

__________________
1990 Toyota 4Runner SR5 V6. 4wd/V6/Auto. Complete Part Out! Click or PM!

1990 Toyota Pickup Xtra Cab DLX. 4wd/V6/Auto

1989 Toyota Pickup Std. Cab DLX. 4wd/I4/5spd. FOR SALE SOON!

zlathim

caligula- Awesome detailed build thread. This is the kind of tech that made me a regular at YT.com.

__________________
Do you think Einstein walked around thinking everyone was a bunch of dipsticks?
Idiocracy (edited for family friendly viewing)

caligula455

Major progress today. I finally paid to download the 2000 tundra diagram from TIS and now everything is looking up.

I took the glove box out and found two big connectors.


the white connector on the right is the harness to harness connector for all the 4wd connections. the wires for the 4wd circuits aren't on this side, but are in the other connector.

here is the circuits that i'll need to be added


i can either add pins to the connector or cut the wire on the other side and splice into them. i'd like to do it right, but i'll have to find the pins and if its too much trouble i'm not going to bother.

In other news, i have a transfer case controller ordered and it should be here monday.

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2000 Tundra V8 - 4wd conversion thread - pictures

Squiddy

Usually a "pickle bar" will do the trick ... about $10 at Autozone

Squiddy

Oops, never mind, that was about the ball joints! DOH

caligula455

So far, here is what i've learned from reading over the EWD

There is a 4LO signal that is passed around when the transfer case shifts, that goes to the ECM and to the ABS computer. the ABS computer also gets a signal when th