Build Bunny: 40th Anniversary FZJ80 / 6BT / NV4500 build

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You saved Lee a lot of heart ache! I too am glad Dustin is being pro-active with this issue. I want to get my drive train swung in this weekend, but I am now playing the waiting game until I get the updated adapter.


Has anyone figured a way to install a fluid level sensor in an NV4500. Would be nice to have an idiot light.
We talked about installing a sight tube on the side of the transmission but decided against it thinking that it would either prove fragile or make another potential spot for a leak. I'd be all about a fluid level sensor.
 
I know some folks have installed trans temp sensors in the PTO cover, I wonder if the same could be done for a fluid level. I am not sure how the constant flow of fluid would impact such a sensor though, typically these are found down in the oil pan, which an NV4500 does not have.
 
Whats the word on this truck ? Did you get your transmission broken in, thoughts on the gear swap with the motor ? MPG ?
Truck's good. Transmission cooler with integrated sight glass installed just today actually, drained the breakin transmission fluid and put 5qts. of Redline MT-90 75W90 GL-4 gear oil in it. Running really nicely, and I expect it to get better with fresh oil. Mercifully, the fluid that came out of the transmission was the right volume, and checking the engine oil at the same time showed that the updated t-case adapter that I was sent is doing it's job and keeping t-case and transmission oil separate.

Gear swap to 4.10s is good. Maybe in a couple of years I'll go down to 3.73s or 3.55s, but for now I'm happy that I've got a normal-feeling powerband and that the motor's not wrapping out any more. Also, I need to re-establish my build fund... this whole thing hasn't exactly been cheap.

MPGs have been 16.8 and 14.0 the last two tanks - I think some of it's down to the 35" MTRs the previous owner fitted to the truck. I really don't like them, so will switch up to KO2s when I wear this set out. They had about 150 miles on them when I bought the truck, so I feel like they're sort of "free" to me. I took my RTT off for around-town driving the other week, and that's made a difference. Looks a lot better too, IMO. But then, it's hugely windy in springtime in New Mexico and my truck's not exactly aerodynamic to begin with. And also, the loud pedal is FUN to use in the truck, and I really still am learning how to drive it in it's sweet spot.

Ended up using only one side of the transmission cooler (driver's side) because the drive shaft impedes where the passenger side's half ought to go, but it's good peace of mind for me to hop under the truck and see with my own eyes that there's oil in the transmission. I'll most likely do a transmission oil temperature sensor/gauge down the line, and there's two pre-drilled spots in the unit I bought to accommodate that.

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@thegogglesdonothing how was your exhaust routed? I would like to be able to go over the frame rather than under it, but not sure if there is enough room to do that with a 3" exhaust.
 
@thegogglesdonothing how was your exhaust routed? I would like to be able to go over the frame rather than under it, but not sure if there is enough room to do that with a 3" exhaust.
it's tucked really neatly up alongside the passenger side of the transmission. Basically straight down and out the back of the turbo and rearward in a nearly straight line, just outboard of the driveshaft and slightly inboard of the frame rail. When we did the exhaust it turned out we saved a bunch of lateral space from where the OEM Toyota automatic transmission had been, so it made lots of room to do a really tight install. I've only got a resonator back there too, and the exhaust tip sticks out just barely below the level of the body, rearward of the right rear tire.
 
So you didn't have to go outside the frame rail at all? That would be ideal! Without have the drivetrain in place it's hard to imagine there being enough room to squeeze a 3" pipe by the bellhousing.
 
So you didn't have to go outside the frame rail at all? That would be ideal! Without have the drivetrain in place it's hard to imagine there being enough room to squeeze a 3" pipe by the bellhousing.
Nope, inboard of the frame rail and parallel to the driveshaft all the way until the rear axle, then it does it's s-bend aft of the rear axle and out to the tip. The resonator is fore of the rear axle, more or less under the right rear passenger's seat. Exhaust guy did great work!

Crap picture here. Hard to get a well-lit shot while laying on the ground in my dark-ass garage. You can see the exhaust coming off the turbo just outboard of the driveshaft - this is shot looking forward, toward the motor.
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So you didn't have to go outside the frame rail at all? That would be ideal! Without have the drivetrain in place it's hard to imagine there being enough room to squeeze a 3" pipe by the bellhousing.

I plan to run mine down between the frame and transmission. All the over under frame s*** ads a bunch of length.
Cooler looks good.
@Wheelingnoob , want to split the cost of cooler between us?

Sure let's do it.
 
I plan to run mine down between the frame and transmission. All the over under frame s*** ads a bunch of length.


Sure let's do it.
Going straight down the inside frame is perfect, I am honestly surprised it fits...bonus. I'll send you a PM to sort out logistics.
 
@thegogglesdonothing did you use the power steering line from Dustin or have one made up locally. Trying to figure out which way to go.
 
Do you know if a custom cross member was made to hold your trans in place, or were they able to modify the stock cross member and make it work?
 
Do you know if a custom cross member was made to hold your trans in place, or were they able to modify the stock cross member and make it work?
I am nearly certain (without being fully certain) that:

1) We used the DA power steering line. If you've got a choice, source one locally just in case. :)
2) Custom cross member, which my builder had to fab as the kit from DA arrived in multiple shipments and one wasn't included. After 3 months' radio silence, my builder fabricated a couple of pieces himself.
 
The local guy Lee that used the DA HF2A to NV4500 adapter was able to re drill the cross member and used a 3/4 spacer between the cross member and the transmission mount.
 
I am nearly certain (without being fully certain) that:

1) We used the DA power steering line. If you've got a choice, source one locally just in case. :)
2) Custom cross member, which my builder had to fab as the kit from DA arrived in multiple shipments and one wasn't included. After 3 months' radio silence, my builder fabricated a couple of pieces himself.
I am going the same route Max and Jeremy have gone and are going for the PS hose. I gave sourced the -6 AN adapters and 90 degree elbows. Will get a couple hoses made locally. I wasn't aware that Dustin offered a cross member, but I guess it's a mute point.

The local guy Lee that used the DA HF2A to NV4500 adapter was able to re drill the cross member and used a 3/4 spacer between the cross member and the transmission mount.
This is what I was hoping would be the case...you just made my day.
 
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