If you’re a committed architect of your truck, you’ve apparently begin accomplished original-equipment genitalia from the architect (OEM) that assignment abundant off-road. These OEM $.25 – be they able-bodied brakes, a stout A-arm, a appropriate hub, a altered ability allotment or a branch locker – are usually congenital bigger than aftermarket parts, and swapping them is generally turn-key. Unfortunately, analgesic OEM genitalia can additionally be adamantine to find, and their accession is generally complicated by advice shortages and fitment hurdles acquired by the analytical mid-run accumulation band tweaks that manufacturers accomplish throughout a product’s lifespan.
In this case, Toyota’s electric locking differential/axle admixture – the e-locker arbor – in the third-gen 4Runner (and Tacoma, if we’re aloof talking about the centermost section, which is generally referred to as the “pig”) is both. The e-locker is a absolute gem: a cab-controllable instant-on 100% locker that was awash with assertive 1996-01 4Runners, additional some four-wheel drive and PreRunner Tacomas. The e-locker centermost area will fit first-generation eight-inch Toyota arbor housings (named for the eight-inch arena accessory in the diff), which were awash with best aboriginal 4Runners and pickups, on all 1996-02 4Runners and all e-locker-equipped Tacomas. That said, there are about a dozen altered diff-axle-gear combos for these trucks you charge to be acquainted of, and there’s some accessory assignment appropriate aback installing the e-locker centermost area on a non-locking eight-inch arbor housing. Meanwhile, the base that supports this animosity locker is straightforward, but not simple.
Rule #1: The basics and ts of the bandy are accessible – this is, afterwards all, a Toyota.
Rule #2: Toyota brand to accomplish mid-year and mid-run architecture changes. Their engineers are active about what they alarm “muda” (waste), so they don’t angle about aback it’s time to advance genitalia or processes. For instance, a green-yellow wire on a 4Runner congenital in May of 1996 can be green-green for 4Runners congenital in June.
Rule #3: Toyota’s muda-aversion fixation (combined with their affection for lots of abstruse options) agency you charge to pay aing absorption to two areas of this swap: accessory ratios and wiring.
Rule #4: Accessory arrangement differences are aboveboard to decipher, if not easy. For example, the 4Runner in this chance had bristles accessory options at the time it was assembled. The base is area your bigger challenges lie, whether recreating OEM base or accouterment a adjustment setup.
Rule #5: Do your analysis – we did. Soooooo abundant of the advice you charge is online because accession abroad ample it out afore we did.
Rule #6: There’s lots of detail surrounding this swap, so we’ve apparently absent something. Feel chargeless to update/augment our advice in the comments section.
Now, there is a ton – possibly alike a crapton – of advice about elements of this bandy online, but it’s all over the place, and not consistently focused on what you appetite to know. Because we put an OEM Toyota e-locker animosity in a third-gen 4Runner that was not able with one new, we’re focused on that. We will be referencing, accept referenced, or plan to advance you advertence the aforementioned assets as were acclimated for this article, all of which are listed. In addition, we’ll accept accession chance that follows this one, which explains our adventures in base the e-locker application simple get ‘r done tech and, alternatively, factory-based components. However, the best abecedary is experience, so get a little dirty. If you can’t acquisition it on the web, you can acquisition it beneath a Toyota.
(Drive)Trains of Anticipation for e-Locker OptionsThere are several routes to booty award an OEM Toyota e-locker for a 4Runner. Keep in mind, we’re talking third-gen here, ’96-2002. There’s cross-swappability of this third-gen action to aboriginal and second-gen 4Runners, but that’s for accession story.
Method One: Hunt bottomward an e-lockered 4Runner arbor and/or junkyard donor that has the aforementioned accessory allowance as yours. There were added than a few third-gens congenital with the electric rear locker. It’s the simplest route, because analogous 4Runner agency analogous arbor housings (third-gen 4Runners are coil-sprung in the rear, while the like-axled Tacos are leaf-sprung aback there). Buy the accomplished abuse affair and the concrete accession takes about two hours – not including the wiring.
Method Two (what we anguish up doing): Acquisition an e-lockered 4Runner whose buyer is accommodating (either they’re planning to put new accessory ratios into their truck, or it’s headed for the junkyard), and bandy advanced axles with them at the aforementioned time you get the rear axle. The front/rear bandy is accidental if the apparatus in your 4Runner already bout the e-locker, but that’s not usually the case (did we acknowledgment the dozen-plus accessory possibilities here?). You ability be able to barter up to bigger gearing (as it was in our case – we went from 4.10 to 4.30), and you ability be able to abstain breaking accessible the advanced and rear pigs to regear them. In this case, we bought the rear axle, complete, and traded advanced diffs. Removing a advanced animosity from a four-by Toyota barter will booty a pro about an hour, and if you acclimated a boutique instead of your driveway, you can accept that boutique leave your rig in the air brief while you account the advanced axle, and they can install the newfound advanced arbor the aing day.
Method Three: Lots of first-gen Tacomas (1995.5-03) were awash with an e-locker (look for e-locker-equipped four-wheel drive and “PreRunner” models). That centermost area (also referred to as a “third member”) is about a t-in to a 4Runner’s eight-inch arbor housing. We say “almost” because there is some artifact to do on an originally unlockered arbor housing, but it’s not complicated work. As with advantage #1, adapt for accessory swapping. Note: the advanced diff/axle apartment on four-by Tacos from 1995.5 to 2003 will fit with the third-gen 4Runner, so the front/rear diff-trade action in #2 is possible.
There are some abundant home-brewed letters on this adjustment online:Probably the best referred to e-locker bandy on the Web.
Another abundant accumulating of e-locker accession information, this by Hoaiphong Truong and the “PhoRunner”.
Bob’s e-locker bandy on a 1998 4Runner, with a absolute genitalia account and acceptable pics.
Method Four: Instead of modifying your no-locker 4Runner’s arbor housing, accept your best fabricating-genius acquaintance and aish the blade perches and added Tacoma-specific $.25 from the e-lockered Taco axle, and bond on two coil-spring perches, the abaft arm and crabbed articulation mounts and accessory connectors to bout those on your 4Runner axle. This is a acceptable time to bond the arbor as well. Spring alignment requires some thinking, so don’t try to do it at 3:AM, or after thinking. Again, you’ll apparently be swapping apparatus unless you additionally bandy advanced axles. #4 makes the best faculty if you’re accomplishing an advancing modification/fabrication analysis to the barter outright. If you analyze the Toyota auto arbor to the 4Runner, however, you’ll agenda this is not an advantage for accession in a bustle – there’s a few genitalia to this process. #3 is analogously easy.
Method Five: Booty #3 and accept “FJ80 Land Cruiser with the locking advanced differential” in the abode of “Tacoma” and you’re best of the way there. The FJ diff, however, is a candied high-pinion adaptation of the eight-inch animosity in the e-locker. The high-pinioned animosity provides the ascribe accessory a little added advantage on the arena accessory and can cope with added torque, and its college pig-entry point agency there’s added approval to be had. That said, the 1993-97 FJ and FZJ-80 is not accepted in junkyards (making the e-lockered high-pinion animosity alike beneath so), and it’s not like the 4Runner is able-bodied afraid with ability anyway.
4Runner and Toyota Eight-Inch Animosity and Arbor Apartment BackgroundThe e-locker adaptation of Toyota’s eight-inch cogwheel is based on the accepted eight-inch animosity that appeared beneath a bajillion Toyota pickups and 4Runners (in both two and four-pinion form; four actuality a bit burlier) with the eight-inch arbor housing. The e-locker adaptation is congenital application the stronger four-pinion animosity awash on V6 and turbo’d 4Runners and pickups from 1986-95, and on about all 1996-02 4Runners and all e-locker-equipped Tacomas, but is swappable with the two-pinion diff. The aboriginal eight-inch animosity was advancing the end of its use-cycle with its actualization on the third-gen 4Runner and e-lockered Tacomas, and the electrically bound adaptation was about as far as it evolved. It was replaced by a larger, stronger adaptation of the eight-inch diff, which was acclimated on Tundras, best Tacos (except for the e-lockered PreRunners) and the T100 pickup. The new eight-inch animosity sported beyond address caps and a bigger t advance at the diff-to-housing flange, and is not calmly exchanged with the earlier-style eight-inch unit.
There are some allotment conventions to be acquainted of – the appellation “ELocker” is endemic by Eaton, and is acclimated for their band of pin/cam electromagnetically-engaged lockers. What we’re apropos to in this chance is the electric locker acclimated by Toyota, which uses a motor-driven accessory and angle to appoint and authority the animosity housing, and which best association accredit to as an “e-locker”.
Because it’s acceptable the accessory ratios in the barter you’re starting with apparently won’t bout the apparatus in the barter you’re accepting genitalia from (unless you get lucky, or do the advanced animosity swap), apprehend to regear. That agency this is the time to accede your annoy and ability affairs for the future, and if you’re planning on active tires bigger than 33-inchers (or about 275/75/16 or 275/70/17 in the metric), you’ll apparently charge to.
As far as accessory installations go, unless you’re accomplished to set apparatus (or are of the apperception that you don’t breach that which ain’t), leave it up to a pro. That doesn’t beggarly you can’t analysis aqueous and dabble with the e-locker, because the Toyota assemblage is accepted for actuality accessible to fix and accessible to appoint manually if the motor does fail. However, these things aftermost a continued time – alike with adamantine use – provided you accommodate that basal maintenance. If your new-to-you animosity came out of a active truck, isn’t authoritative the afterlife bark (or the guy you got it from declared that he was), and you’re not in charge of new gearing, install it, pay absorption to it while it bonds with your truck, and if there’s no absolute assurance of issues, it ability not accept any.
Do Your Research!There’s affluence to apprentice about this bandy online: forums like YotaTech.com, Pirate4x4.com, 4x4Wire.com and 4Runner.org accept acquired and reposted the action to the point of actuality repetitive. In addition, geeks and gearheads accept appear specific segments and specialized capacity advantageous to the e-locker bandy action because that’s what geeks do. Retailers like the Switch Guys (OTRATTW.net), LowRangeOffroad.com and 12VoltGuy action all-important (and/or hilarious) switchgear and base solutions, and Low-Range additionally retails the e-lockers themselves. As ahead noted, the web is afraid with added advice about the swap, including at atomic a dozen base diagrams for aing an e-locker application the OEM harnesses and interface, and a few setups that can be done with basal advance (just chase “wiring Toyota e-locker”).
Off-Road.com has a advantageous allotment with Toyota arbor information, appear in Y2K (“Toyota Cogwheel Identification”), and admitting it’s defective abundant for third-gen 4Runners and Tacomas, it’s got a lot of acceptable learning.
Unfortunately, like best branch Toyota information, it’s not complete. We’ve abstruse that alongside the architecture tweaks done on the accumulation line, Toyota additionally did a ample cardinal of caster and annoy swaps for U.S.-market 4Runners (all of which were congenital in Japan), and abounding third-gen 4Runners rolling off the agent in American had their Japan-spec 15-inch auto and tires swapped for a 16-inch combo. A Toyota tech acquaintance declared that some of these 4Runners had their apparatus swapped at the aforementioned time (possibly an arbor swap?), and admitting we couldn’t acquisition added than anecdotal affirmation of this, we did agenda that abounding of the 16-inch wheel/tired 4Runners had a accessory arrangement (4.10:1, in our case) that didn’t bout the aforetime all-over axle-ratio chart.
A antecedent of admired apprenticeship for this e-lockering chance was begin at 4x4Wire.com: the allegorical “Erik’s Diffs” folio which is brimming of celebrated Toyota barter cogwheel and arbor info. Like added assets we’ve found, it’s best to crosscheck everyone’s 1996-02 4Runner details, because there’s activity to be discrepancies (you try architecture 750,000 4Runners and not accept a few mutants appear off the line). It’s best to admit, however, that some association like “Erik” aloof apperceive a lot of being we don’t. Aback attractive for authentic information, your best searches will apparently chase the aisle that brought us aback to the forums afresh and afresh – if someone’s anticipation it up, the forums will accept it.
Here’s some links for you to alpha with:Low Range Off Road austere up abiding questions about genitalia availability and fitment.
More advantageous capacity about the bandy by Karl Bellve and Ken Flesher.
Speaking of funny, the Switch Guys @ OTRATTW apperceive a lot about electricity in automobiles, and advertise hundreds of altered Carling switches that say things like “’Squatch Lights” and “Zombie Mode” (and they’re not Chinese knockoffs).
Also fabricated in the U.S., 12 Volt Guy builds switchgear agnate to what we’re activity to do with the non-OEM animosity controller.
YotaTech: abounding of bodies who’ve already done every Toyota barter mod you haven’t anticipation of yet.
Pirate4x4: added mods, added models, added info, not as Toyota-centric.
IH8MUD: added Toyota, beneath 4Runner, lots of acceptable information.
Bob’s complex (with acceptable pictures) e-locker bandy on a 1998 4Runner, at 4Runners.org.
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