3rd Gen Rear Axle swap into 2nd Gen Taco

Hmm I’ve yet to mess with one. No problems with one yet

 

What do you mean no problems?

 

We’ve had no warranty issues with any diffs other than a few seeping at work. No differential failures. Never had to take one apart

 

Fj cruised diffs? Seems like we’re doing one every 3-4 months

 

Not saying they had anything wrong just the motor situation is different than the 2nd gen and no one has been able to crack it for a locker anytime mod.

 

Oh I know. I was just saying I didn’t know the setup at all because I haven’t had to look at one yet.

 

Ah now I'm on the same page. That's why I suggested going with the MT still get the 8.7 but can do whatever locker you want. Hell I'd probably step up to the 10.5 out of the newer tundra and put a locker in one of them for your tundra.

 

Yes FF2, that was the original question. Still not answered. haha
After Overlndkull wrote that the A-Arm locations/mounts, coil over/front shock mounts, cross members etc are different from 5 to 6 lugs trucks (sounds like they have different frames. weird but whatevers) my dream of hatching this little base 5-lug into a sweet Prerunner were killed. I was going to buy PreRunner A-arms, coil overs, spindles, hubs (they call this the "knee assembly") brakes, steering rack for the front conversion then buy a pair of Prerunner rear leafs, a Gen2 or Gen3 rear axle assembly (4:10 or 4:30 non locking) for the rear then run 2020 4-runner (brand new) 265/70-R17's on 4runner factory wheels (I have a set) and have a truck that is not so light in the ankles. Same problem in some of the GM pickups when you go from 1/5 ton to 3/4 or one ton - the frame and front end locations are completely different. Thought Toyota may have been smarter and consolidated all that in thier manufacturing since the Hilux was so successful globally and so is the Tacoma.

 

The 3rd gen axle can swap in the WMS to WMS is the same as far as I know the ABS sensors are the same as well. It's just a matter of needing a DS made for it. You can use a 2nd gen axle as well.

I didn't mean to bust your bubble. But there are some good 5 lug prerunner builds on here as well. You may want to go looking at some of them. Do a little surfing around this site there is a ton on here!!!

 

Ovrlndkull, my base 5-lug Taco identify's as a 6 lug PreRunner so I was just trying to give it the proper equipment.

 

If you are going through the hassle of swapping the whole axle either do a second gen for simplicity or ink up on a speedway 9”

 

im curious if the 8.7" can fit in the 8.4 housings. thats where i can see it being useful. although it appears that the carrier bearings are about the same size. so maybe no real gain in strenght. I just am looking for a "cheaper" route to replace my LSD rear diff.. because i know for a fact the clutch packs are wearing out being at 200k.


trust me the 10.5" diff has crossed my mind, but the land cruiser 9" or 9.5" ( cant remember size) free floater is what i'd do if i were going that far.

oh and the 8.7", cant find the specifics. but its a electromagnetic setup now, So it may be able to be switched with just a switch. but not 100% sure. no mention of PWM in the manuals.

 

yea 2nd gen and 1st gen 5 lugs were on the "mini" truck chassis. totally different frame setup up front.. you can swap rear axles if you move spring perches around or live with the back being WAY higher with the leafs on the top of the axle.
the 3rd gen they killed the 5 lug, no more seperate frames. the prerunner is now the base model. so no more prerunner name either

 

Those were in the wayyyyyy older LCs so then your hurdle would be sticking a really narrow rear under the truck. The 80 series which is still narrower would be the closest but that is just your normal axle. Also the LC has the rear offset to the PS quite a bit (until the 100 series) where the tundra and others are centered.

As for the 8.7 being no real benefit due to bearing size, I think the benefit comes more with the size of the gears. The 2nd gens, especially the OR, tend to kill the R&P. Now there could be a bunch of different reasons why, but my suspicion and theory is based on the tooth size. The OR I think there is some deflection there especially when offroading that causes it. The 8.7 out of the MT trucks could have some extra bracing and stuff too, I don't know, to support the bearings and prevent deflection, I am not sure, kinda like the non e-locker in the 2nd gen.

 

Read through this thread, it'll give you all the technical info on the PWM/locker system we really know about it.
https://www.tacomaworld.com/threads/rear-diff-lock-anytime-mod-3rd-gen-development.537810/

 

The rear axle would be a breeze compared to the front axle. The wheel ends of the axle are the same for 2005-2020 provided you're comparing 6-lug to 6-lug.

But since we're comparing 5-lug to 6-lug, it's worth noting that all 2005-2020 Tacomas use the same rear ABS sensors.

Jeff

 

This thread was hilariously frustrating. Holy shit.

May as well revive it: doesn't look like a 3rd gen 8.7 3rd member fits a 2nd gen axle housing but does the ABS swap over?

I've got a bead on a cheap 3rd gen (2019) 4.10 ratio e-locker complete rear axle so mainly wondering if the ABS would swap over to my 2nd gen truck? I understand the e-locker wiring is not compatible between generations but is the ABS?

 

The wheel ends are identical.

 

Great to know. Thanks!

 

Sounds like OP bought the wrong truck for their needs/wants, and now, instead of trading it in, is trying to mod it into the truck he actually wanted. A perfectly fine project, but it sounds like they don't actually have the skill or knowledge to do it.

My advice to anyone in this situation: buy a new truck.