TRD and standard diff swapable?

[ToyFamily]

I just picked up a pair of brand new TRD axles from the Dealership for my 85 4runner and I heard they have the 4:30 gears in them. I already have 5:29's to drop in them so I have a question.

I am building my wife's 97 4runner up for the debut/pics of our (shrockworks) new front bumper and sliders for that model of 4R/taco. I am looking to put on a 2-2.5" lift and 32-33" BFGs and I need to see if I can drop the 4:30 gear in the rear of that 97 4runner diff (non TRD) and find a front 4:30 R&P.

thanks,

Nick

[badmoonrising]

you cant swap the 3rd's without modifacation.

[sloppyslim16]

Wont work without some modification as said. From what I know, I would try to beef up the 8.4, its actually stronger than the older diffs.

[ToyFamily]

I am just wondering if the actual ring an pinion will work on the non TRD carrier.

Nick

[sloppyslim16]

No. The non TRD ring is 8.4" while the TRD is 8". Carriers are different as well.

[fastrexxx]

Originally Posted by ToyFamily

I just picked up a pair of brand new TRD axles from the Dealership for my 85 4runner and I heard they have the 4:30 gears in them. I already have 5:29's to drop in them so I have a question.

I am building my wife's 97 4runner up for the debut/pics of our (shrockworks) new front bumper and sliders for that model of 4R/taco. I am looking to put on a 2-2.5" lift and 32-33" BFGs and I need to see if I can drop the 4:30 gear in the rear of that 97 4runner diff (non TRD) and find a front 4:30 R&P.

thanks,

Nick

According to Erik's Toyota Axle Page, the 4Runner, whether E-locked or not, uses the same Turbo/V6 8" R&P (same R&P as an E-locked Tacoma). The 4Runner never came with the Tacoma/Tundra/T-100/Sequoia 8.4" R&P (actually measures 8", but people insist on calling it an 8.25" or 8.4" to differentiate). What I don't know is if the non-TRD pinions from the 96+ 4Runners are 27 or 30 spline.

So, basically, it sounds like what you are trying to do will work, as long as you use the right pinion flange.

[SHNIPE]

Originally Posted by sloppyslim16

No. The non TRD ring is 8.4" while the TRD is 8". Carriers are different as well.

both are 8" rings. its the mounting patter of the third into the housing thats 8.25"

['00Tacosinger]

Originally Posted by fastrexxx

According to Erik's Toyota Axle Page, the 4Runner, whether E-locked or not, uses the same Turbo/V6 8" R&P (same R&P as an E-locked Tacoma). The 4Runner never came with the Tacoma/Tundra/T-100/Sequoia 8.4" R&P (actually measures 8", but people insist on calling it an 8.25" or 8.4" to differentiate). What I don't know is if the non-TRD pinions from the 96+ 4Runners are 27 or 30 spline.

So, basically, it sounds like what you are trying to do will work, as long as you use the right pinion flange.

those are completely different diffs...not the Tacoma diffs. The only thing that is the same between the early elocker and the Tacoma's are the R&P gears.

the Taco 8" elockers have 10 8mm bolts securing the ring gear. The "8.4" or non-TRD have 12 10s. Both are technically an 8" ring gear. There is no way to make them interchangable and frankly no point in trying since you can just swap out the complete assemblies for under a grand.

4runners have used the same rear diff from their first generation to present. Most do not have the elocker.

Why Toyota didn't use this, much stronger, axle assembly on the new Tacoma is a mystery to me

[badmoonrising]

when is the 04 taco bumper supposed to be out?

[ToyFamily]

It depends on how well the prototype goes but will probably follow the prototype by about 6 weeks.

Nick