Thumper
1/2 ton status
Well, I am 10 spline here, but I dont see the survey page on your site... blind maybe? 
Mike
Mike
CK5
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3:1 gears for 205!!!
- Thread starter emoo99
- Start date
I've been pretty happy with 62:1 with 42's for overall crawl and use 2:1 low a good bit when power/wheel speed is required. I'm not sure I really have a place for a 3:1 205 personally but if I had a 400 and say a 4.56 axle gear, you'd end up around 68:1 which would work well, as opposed to the 45:1 (which works OK) with a 4:1 t-case.
This makes a single case with 5.13's and a TH700 look a lot more attractive at about 46:1 in low.
This is just another option to consider, it will be right for some, not for others but it does fit into a unique niche. It seems like this will be really nice for trailriders in the east where you use more spin and have more mud.
This makes a single case with 5.13's and a TH700 look a lot more attractive at about 46:1 in low.
This is just another option to consider, it will be right for some, not for others but it does fit into a unique niche. It seems like this will be really nice for trailriders in the east where you use more spin and have more mud.
Stephen said:
yeah, thats sorta what I'm thinking... but without using it I'm not sure. Now I am running a 350, th700, np205, 4.56s pushing 39.5s... but once these tires are toast, I'm going to 42s. 5.13s will happen before the bigger tires. At any rate, like I was saying in my other post, I need more control so I can crawl over stuff more smoothly. Right now 27:1 (no tc mult) isn't cutting it... question is, would 47? Seems like quite a bit more... but again, without using it myself I dunno. Anyone make a similar crawl ratio increase and can pass on the results?
j
700R4/NP208/3.42s (27:1) with 33" TSLs crawls about the same as SM465/NP208/3.73s (64:1) with 40" TSLs when it comes to slow stuff.
The only thing I've noticed is that the automatic transmission isn't linear as far as speed and power goes because of the torque converter. As soon as the converter stalls you notice that you don't run out of gear as fast as a manual. This is also a nuissance sometimes though because if you need more power you'll eventually cause that converter to stall. With the auto I have to left foot brake to control speed when climbing junk but with the manual I don't need to. If I had a low rpm stall converter I'd definitely need a lot more gear. It'd also make some stuff easier.
The only thing I've noticed is that the automatic transmission isn't linear as far as speed and power goes because of the torque converter. As soon as the converter stalls you notice that you don't run out of gear as fast as a manual. This is also a nuissance sometimes though because if you need more power you'll eventually cause that converter to stall. With the auto I have to left foot brake to control speed when climbing junk but with the manual I don't need to. If I had a low rpm stall converter I'd definitely need a lot more gear. It'd also make some stuff easier.
Lomax said:
32 spline for me.....
Tom
I'm 31 spline (Ford) because it was so much easier and cheaper to get than the short 32 spline GM input. Plus, I already had a Ford case I was tearing down for the 32 spline front output. 
captaininsano
1/2 ton status
10 Spline here
tarussell said:
ratzila said:Are you gonna run the 3 to 1 lomax with your doubler?
Yes, he wants one to go along with his WMS 3:1's that should arrive this week for his Doubler.
ratzila said:What's his crawl ratio gonna end up being
C/R will be 241:1 with my present set up and if I do the LoMax gear box it will be 370:1
I figure I'll need a little help in the gear ratio department if I want to keep up with John since he has a hundred-and-fifty , or so , cubes more than Me .Tom
We're going to have to use time-lapse photography for you on the wheeling trips. 
NorthWestFab
1/2 ton status
CyberSniper said:
Hey Brian,
We have our NP203/NP241 adaptor plates rolling off the mill next week - you can use either a Chevrolet 32 spline NP241 (from a SM465 or TH400), or a Dodge NP241 23 spline input - bonus with the dodge is the factory fixed yoke. these adaptors are 3" face to face and have the same clocking featues as most. I will get 27 spline shafts made for you 700R-4 guys, for now you'll just have to swap input gears.
Also we have our fabricated SM465->NP203 adapor plates rolling off the mill soon, they're going to be reasonably priced saving time to find the elusive adaptor.
'Shorty' SM465 tailshafts are coming - but a little further back. they will be cut to both 32 spline and 27 spline, allowing you to run the finer spline NP203's.
Dual NP241 adaptors are about 6-8 weeks away.
Uh yeah, plenty of cats have been let out of the bag there ...thats enuf
thebigdaddyof2
1/2 ton status
Finally, some options for the 241!!
NorthWestFab
1/2 ton status
thebigdaddyof2 said:
the 241 is a great case that can take serious abuse - I think it does not get the credit it deserves.
Just make sure you have a skid !
thebigdaddyof2
1/2 ton status
OT Question:
If a guy has the 203/241 doubler, could he swap the 241 for a round pattern 205 at any time?
If a guy has the 203/241 doubler, could he swap the 241 for a round pattern 205 at any time?
NorthWestFab
1/2 ton status
thebigdaddyof2 said:
The adaptor plate is slightly different due to the NP241's bearing size being different- but you would only need to swap the 1 plate out of the 3, they're $139 ea, makes the swap fairly painless.
thebigdaddyof2
1/2 ton status
Very nice.
I suppose you will post up availability in the Vendor section?
I suppose you will post up availability in the Vendor section?
NorthWestFab said:Hey Brian,
We have our NP203/NP241 adaptor plates rolling off the mill next week - you can use either a Chevrolet 32 spline NP241 (from a SM465 or TH400), or a Dodge NP241 23 spline input - bonus with the dodge is the factory fixed yoke. these adaptors are 3" face to face and have the same clocking featues as most. I will get 27 spline shafts made for you 700R-4 guys, for now you'll just have to swap input gears.
Also we have our fabricated SM465->NP203 adapor plates rolling off the mill soon, they're going to be reasonably priced saving time to find the elusive adaptor.
'Shorty' SM465 tailshafts are coming - but a little further back. they will be cut to both 32 spline and 27 spline, allowing you to run the finer spline NP203's.
Dual NP241 adaptors are about 6-8 weeks away.
Uh yeah, plenty of cats have been let out of the bag there ...thats enuf
WOOHOO, finally some options for something besides cast iron transfer cases.
How well do you think a NP241 will hold up to a 300ftlb smallblock, 6.55:1 SM465, and a 2.01:1 NP203? That'd be like 4000ftlbs. I'd have no qualms with an auto but a dumped clutch manual I'd be afraid of the range selector coupler thing-a-ma-bob going AWOL with the high torque and shock loading.
Any plan for a 241/205 "tripler"? It's easier to find a driver drop 241 and some kind of 32 spline 205 than it is to find a 32 spline 203 and a 32 spline passenger drop 241. Combine the 241/205 setup with a shorter output 465 and you'd have a moderately short setup... there's an easy 5" to be had between the 32 spline 465 and the next transfer case.
sled_dog
1 ton status
NorthWestFab said:
I may just have to buy one of those setups and switch to the 205 if I break stuff. I need the VSS setup of the 241, gear ratio would be nice.... this is dangerous thinking.
