Another 1st gem - Kernel MusTURD

Would your situation improve by losing a transmission? Gotta think it would.

I don't think so, it would just be in the way of the front seat mount instead of the rear.

An atlas will fit anywhere a 300 previously resided. While its gerth is bigger the picture frame it sits in is the same.

I don't know wtf that means, but a D300 is way smaller, so that makes zero sense.
 
A 300 is smaller than an atlas. The front output on a 300 is 1"-2" (can't remember now) closure to center line of the transmission.

Sounds like a 2" drop sub frame is the ticket to resolve this issue for you.
 
If you clocked the case at an angle instead of flat, could you get some room and then only need a notch on one side of your crossmember? If it's currently clocked flat this might be the ticket. Yes you loose some ground clearance but only on a portion instead of the whole crossmember/skid plate.
Just spit balling since I can't see what you're dealing with.
 
A 300 is smaller than an atlas. The front output on a 300 is 1"-2" (can't remember now) closure to center line of the transmission.

Sounds like a 2" drop sub frame is the ticket to resolve this issue for you.

It already has a 2" drop sub frame

I'm well aware of all the clocking options and lowering things. It's not a problem of loosing ground clearance as much as its making my straight cross members and flat skid plate panels much more complex to build and replace.

I feel like I have the passenger seat issue solved by moving the tcase over a bunch to the driver side. The rant was more about the middle seat position which is right behind the tcase on top of the drive shaft tunnel. Only way to fix that would be lowering everything. Thinking about it more, no other center output tcase will help here as the rear output is in line with trans output. Maybe I need to find an Lt230 case
:flipoff2:

It was more just a rant to rant. :homer:
 
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Make it 4”?
See above

Have to remake or modify all the crossmembers and then skid would not be flat. Part of what I liked about it was easy to replace skids and crossmembers.

I'll think about it some more, but I think I can make it work. I'm already committed to building the floor from scratch.
 
Been there and done that. I'm laughing with you, you're just not joining in. :flipoff2:

Not that it helps but have you thought of building a belly pan as the cross member? It sometimes can be more simple and be closer to the case.

If all else fails strap them to the floor laying down.
 
I don't think so, it would just be in the way of the front seat mount instead of the rear.



I don't know wtf that means, but a D300 is way smaller, so that makes zero sense.
300 and atlas are really close in size. Anywhere a 300 is installed an atlas will replace. If you imagine a cubic square box, both will fit in same space.
 
Been there and done that. I'm laughing with you, you're just not joining in. :flipoff2:

Not that it helps but have you thought of building a belly pan as the cross member? It sometimes can be more simple and be closer to the case.

The lowest points of the drive train itself are the trans mount and the Atlas cover. Both are less than 1/4" from the skid. I may even have have a bump in the skid for the inspection cover.

If all else fails strap them to the floor laying down.

I was thinking just do 2 seat and have them run behind?

300 and atlas are really close in size. Anywhere a 300 is installed an atlas will replace. If you imagine a cubic square box, both will fit in same space.

I guess you better tell that to all the portal buggy guys searching out D300s to save space.
 
The lowest points of the drive train itself are the trans mount and the Atlas cover. Both are less than 1/4" from the skid. I may even have have a bump in the skid for the inspection cover.



I was thinking just do 2 seat and have them run behind?



I guess you better tell that to all the portal buggy guys searching out D300s to save space.
The 300 craze for portal cars is because when Jesse started using them they were cheap and light compared to aftermarket atlas and readily available. . If he could clock an 18 or 20 he'd use those too because they are cheaper than 300's.
 
I have meant to do something with my dads junk for years. The final plan was an ibox in front of a D300 with a super short output. ~16". Length is the killer for that rig.

ScottRS is working on a 241 doubler on a 205 and maybe a super short output. It would end up at almost the same length and get give better gearing options. The size isn't a lot different than an Atlas.

Moral of the story, big isn't always that big.

Toyotas seem like a pain because the were designed with everything hanging down. I've become lazy and would just drop it and cover it with a cap. Get it rolling and in a couple of years kick that kid to his own rig and then move it up.
 
The 300 craze for portal cars is because when Jesse started using them they were cheap and light compared to aftermarket atlas and readily available. . If he could clock an 18 or 20 he'd use those too because they are cheaper than 300's.

Wierd, never looked at jhf car and got the feeling he chose certain parts because they were cheap.

I have meant to do something with my dads junk for years. The final plan was an ibox in front of a D300 with a super short output. ~16". Length is the killer for that rig.

ScottRS is working on a 241 doubler on a 205 and maybe a super short output. It would end up at almost the same length and get give better gearing options. The size isn't a lot different than an Atlas.

Moral of the story, big isn't always that big.

Toyotas seem like a pain because the were designed with everything hanging down. I've become lazy and would just drop it and cover it with a cap. Get it rolling and in a couple of years kick that kid to his own rig and then move it up.

Nwf and I think behemoth do integrated planitary boxes that wind up pretty compact.

241/205 is a lot of money for only 5.4:1 if he's got a manual. My buddy runs that ratio in his 1 ton tj on 37s and imo it's not low enough for technical stuff.

If budget is there, the tremec 5 speed is made to more or less drop in place of an ax15 and has a 6.xx 1st gear. Probably still want a 4:1 case behind it for real technical stuff though, so it gets expensive.
 
Wierd, never looked at jhf car and got the feeling he chose certain parts because they were cheap.

You’d have to know him. Jesse can make pennies squeak. He started out building portal axles and with D300’s because they were basically free at the time. (Both the portals and the D300’s) He’s the reason the prices are fawktarded high because of his pursuit of cheap comp crawler stuff.
 
You’d have to know him. Jesse can make pennies squeak. He started out building portal axles and with D300’s because they were basically free at the time. (Both the portals and the D300’s) He’s the reason the prices are fawktarded high because of his pursuit of cheap comp crawler stuff.

I get that, back then. I'm also not only talking about his personal rigs.

Now most of the guys still use the D300 because they're smaller. Just a fact.

Not trying to come off as anti atlas because I'm not. But for years I've seen people recommend going atlas over Toyota cases(including myself) when they don't know what it actually takes to fit them. The benefits are high and probably worth it for some. But it's not an easy weekend project like Toyota guys are used to with dual cases.
 
Wierd, never looked at jhf car and got the feeling he chose certain parts because they were cheap.



Nwf and I think behemoth do integrated planitary boxes that wind up pretty compact.

241/205 is a lot of money for only 5.4:1 if he's got a manual. My buddy runs that ratio in his 1 ton tj on 37s and imo it's not low enough for technical stuff.

If budget is there, the tremec 5 speed is made to more or less drop in place of an ax15 and has a 6.xx 1st gear. Probably still want a 4:1 case behind it for real technical stuff though, so it gets expensive.

I'll have to look at that transmission. I've been thinking about and old pickup box. t18, np435, 465; whatever is easiest. It was an Ax5 until he broke that, now an Ax4. My worry has been losing another highway gear.

The 4:1 hasn't been horrible with 5:38 gears and 37's, but 5.44 would be more better. Everything but crawling sucks though because even the 4:1 is too low and it doesn't have the power fir 1:1.

I should have gotten a flywheel weight from bunch when I planned on it 20 years ago. :laughing:

Oh, option #10. Bumper rack for the kids.
 
I'll have to look at that transmission. I've been thinking about and old pickup box. t18, np435, 465; whatever is easiest. It was an Ax5 until he broke that, now an Ax4. My worry has been losing another highway gear.

The 4:1 hasn't been horrible with 5:38 gears and 37's, but 5.44 would be more better. Everything but crawling sucks though because even the 4:1 is too low and it doesn't have the power fir 1:1.

I should have gotten a flywheel weight from bunch when I planned on it 20 years ago. :laughing:

Oh, option #10. Bumper rack for the kids.

Too bad, my father in law had a pretty new np435 from Novak with the 4.0/4.2 and round 6 adapters he pulled out of his YJ and sold for cheap.

Although the gap between high and low is worse with a wide ratio trans like a 435 in some ways. You do have a granny low to help make up for it.

I'm not sure the tremec is all that different on paper than a 435 besides OD and claimed smoother shifting.

Screenshot_20260509_120141_Chrome.jpg


What case is in it currently?
 
I'm not in a hurry. The Jeep isn't mine yet, maybe won't be, and I'm not sure I want it. I built it for my dad and his driving days are done. I take it out sometimes, like moab last year (2wd low shift fork broke :laughing: ) otherwise it sits.

It has a 231 with a tera 4:1, 2 wheel low, and a super short output. Tranny is the AX4 and the rear driveline is right about 18" long. Driveline hits 35 degrees at full droop. The front just barely clears the crank at full bump. Not a lot to work with unless I want to do a remodel.

The 4:1 would be better but you have to limit the input rpms to keep it alive.

Anyway, ****ing up your thread.
 
I'm not in a hurry. The Jeep isn't mine yet, maybe won't be, and I'm not sure I want it. I built it for my dad and his driving days are done. I take it out sometimes, like moab last year (2wd low shift fork broke :laughing: ) otherwise it sits.

It has a 231 with a tera 4:1, 2 wheel low, and a super short output. Tranny is the AX4 and the rear driveline is right about 18" long. Driveline hits 35 degrees at full droop. The front just barely clears the crank at full bump. Not a lot to work with unless I want to do a remodel.

The 4:1 would be better but you have to limit the input rpms to keep it alive.

Anyway, ****ing up your thread.

All good, not like I'm posting progress anyways.

Stock wb jeep is always a challenge.

The easiest and cheapest solution would be an aw4 swap. Then you don't need 150:1
 
Too long. That's why they did't have one. Also the 4cyl has a different bellhousing pattern. Chevy 2.8 I believe. Thought about the 904 torque flite. It fits. The wheelbase is about 100". The problem is the motor sits way back. If I didn't like the balance so well and hadn't built everything based on that extra room, I would move the motor forward.

It doesn't have the power to pull 5th except downhill with a tail wind. I'm not worried about that. The Tremec tr4050 would give me an extra 3" to work with.

And a lower geared case may be enough. Especially if I got a 5th gear. The input limit is 2000 or 2500 in low. A different case shouldn't have that limit and it would bridge the gap between low and high.

When we were in Moab I ended up being slow because I was worried it wouldn't pull a climb in 2nd or 3rd. It probably would have but I was thinking I am a rusty old bastard and I'm not going to kill the motor here. :lmao:

If I ended up with it I would probably pu5 35's on it and daily it until the air shocks were done. Then start reworking it.
 
Too long. That's why they did't have one. Also the 4cyl has a different bellhousing pattern. Chevy 2.8 I believe. Thought about the 904 torque flite. It fits. The wheelbase is about 100". The problem is the motor sits way back. If I didn't like the balance so well and hadn't built everything based on that extra room, I would move the motor forward.

Forgot it was a 2.5, definitely need lower for a damn 4cyl :laughing:

Aw4 with a flipped 300 or an atlas should wind up shorter than what you have.

There is a few bellhousings you can use to mate the 2.5 to the aw4.

It doesn't have the power to pull 5th except downhill with a tail wind. I'm not worried about that. The Tremec tr4050 would give me an extra 3" to work with.

Sounds like dropping a 4.3/4l60e would be a better all around bang for your buck.

And a lower geared case may be enough. Especially if I got a 5th gear. The input limit is 2000 or 2500 in low. A different case shouldn't have that limit and it would bridge the gap between low and high.

When we were in Moab I ended up being slow because I was worried it wouldn't pull a climb in 2nd or 3rd. It probably would have but I was thinking I am a rusty old bastard and I'm not going to kill the motor here. :lmao:

If I ended up with it I would probably pu5 35's on it and daily it until the air shocks were done. Then start reworking it.

I've never driven a 2.5 but imagine I'd be similar to a 22re. They suck to wheel without a ton of gearing, can imagine a 4:1 only that you can't really use 3rd or 4th in.
 
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