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View Full Version : what transfer case do i have?


FordRacing909
12-03-2006, 10:33 AM
i am curious about my transfer case, all i know is its made by borg warner, but i dunno how strong it is in compasrison to the NP205, which one is better or that i should go with, oh and my truck is an f350 and when finished ill be running a warmed up/rebuilt 460 and 42" TSLs ready for the spring [36]

4doorShorty
12-03-2006, 10:42 AM
might be a 1356, I dont know when they started using them in F350s tho. What year is your truck? If its the one in the pic it looks like it could be 85/86...if the 460 is stock then its '83-86.

m j
12-03-2006, 10:43 AM
there is no case as strong as the np205 and as compact.
with the big motor and running gear pushing heavy tires I would swap a np205 into it.

4doorShorty
12-03-2006, 10:50 AM
the 1356 can survive under a powerstroke...it is a great t-case. Go read the 205 thread down a few posts on the page.

m j
12-03-2006, 12:34 PM
I did read that other thread.
the conclusions reached in that thread are incorrect.
there is not a snowball's chance in hell an aluminum chaindrive case will last as long as an np205.
he was given poor advice.

u2slow
12-03-2006, 12:34 PM
Could be a 1345 also.

Maelthra
12-03-2006, 02:48 PM
might be a 208. Those are pretty tough.

FU Toolbag
12-04-2006, 06:48 PM
I did read that other thread.
the conclusions reached in that thread are incorrect.
there is not a snowball's chance in hell an aluminum chaindrive case will last as long as an np205.
he was given poor advice.

I've seen 205's explode as well. Those wimmpy little aluminum chain boxes have come along way. I saw a report in a magazine a while ago that has some of these rated upwards of 700ft/lbs torque. How many of us are running with balls that big?

P.S. my new flatdeck's running a 205.

boyzen
12-04-2006, 09:11 PM
I am switching to the bw 1356 this year to test one out I like 2 things the lighter weight and lower gear so my 205 is just about done now so I want to try one ,I still have a couple 205's in case but I have seen them under a few big and powerful rigs and survive a long time.

In The Zone
12-05-2006, 09:32 AM
the 205 is a good strong case goodpoint...


it also has one of the worst lowrange gearing out
it is effin heavy hangs wayyyy to low unless clocked

for some swaps the tranny ext housing must be notched for shift rail clearance..

imo a overrated case......unless u do a 203 doubler to compensate it 's short comings....

the 1356 replaced the 1345 the 1356 is a magnesium case... 1345 aluminum

both have built in pumps for lube allows towing....
much lighter and wayyyyyy better lowrange...

with proper maintence and a good skid plate there is no reason it should fail.....as well with some enginuity a adapter and range box can be added to either as well.

just my .02

FordRacing909
12-05-2006, 04:39 PM
thanks everyone for the info, i think im going to leave it and see how it works out for me, if it goes ill replace it with the 205, and its an 81 F350 and im swapping the 460 in to replace the 351m

m j
12-05-2006, 06:40 PM
you over value a 0.7 lower gear ratio
the 205 has no shortcomings, not a one.

4doorShorty
12-05-2006, 08:19 PM
that may be true....but why regear from 3.55 to 4.10 then? Which most people do when adding bigger tires. Thats only .55 difference

In The Zone
12-05-2006, 09:58 PM
not saying it is a bad alternative just a undesireable one for some.

unless u get the lomax 3:1 but why? $$$$$$
it is only .28 more a mere 1/4 turn
.7 is almost 3/4 of a rotation.

u2slow
12-05-2006, 11:46 PM
[drama]

Run them both and quit complaining. [22]

m j
12-06-2006, 06:42 PM
3:1 is too low for a single case
2:1 is just right, perfect when you add a second reduction case.

LoMax is a screaming deal. (not that I see a need for one as I think dual cases are the way to go)
price a new 205 case and gears from a Chev or Dodge dealer.

m j
12-06-2006, 06:50 PM
that may be true....but why regear from 3.55 to 4.10 then? Which most people do when adding bigger tires. Thats only .55 difference

usually to put the engine back into it's operating range for normal driving.
Hell I went further and regeared my chev from 4.10 to 4.88 and then back to 4.10.
4.88s were nice offroad and around town but the highway rpm was horrible IMO

4doorShorty
12-06-2006, 10:29 PM
i know why people regear...you just seemed to have missed my point. You stated it was only .7 difference, I was pointing out that it is a big enough difference.