About my transfer case

Ok I crawled underneath today and looked at my t-case. Here what I saw

Borg Warner Automotive

13-53-039-908

MPI B

On the tag: 8089 1 1356 31

02848 E91A - PA

A number or two may be off as I was scribbling without looking. Sorry

Does this help explain why I have 2Lo as well? Is there anyway you can add a 2Lo during a rebuild or something? Again, just curious.

Thanks guys

Looks like a normal BW 1356, Are you positive it has 2lo. Maybe someone put the wrong shifter **** on there?

Positive about the 2Lo. We tested and tested that when I got the thing. And the shifter is the stock ford pattern w/ only stock markings. No reference to the 2Lo which is what threw us off when we tested the 4wheel drive.

The picture shows the normal 13-56 shift selection as 4L, 4Hi, and 2Hi, plus a neutral position. I see no 2LO

Yeah I know. Weird isn't it? But we found some good mud, spun 2 back wheels in 2Hi, spun all four in 2Hi, spun 2 back wheels in what we consider 2Lo and again spun 4 wheels in 4Lo. And it did this pattern consistantly. The only thing I can think of is someone added something inside. Could you do that?

I have had many of those apart and theres no 2 lo function in there and no way to add . What may be happening is the oil pump may have failed and the 4 low fork didnt break all the way . I would tear it down and look inside for broken parts . Where are you thinking 2 lo is ? All the way forward ? All the way back ? maybe between neutral and 4 lo that could possibly happen is shifter was really stiff but you will break parts if this is the case because of the lack of surface area for the splines to ride on , on the main shaft . /emoticons/[email protected] 2x" width="20" height="20" />

I agree with Blade, since he knows the 13-56 inside & out. When you're in 2Hi or 4HI, the engine RPM's are normal or the same at a given speed like 10 mph, and when you shift to 4LO, the RPM's get alot higher for the same speed of 10 mph. The low-range ratio is about 2.7:1. IF you truly have a 2LO, you should notice a similar RPM as 4LO. (assuming simlar ratio for 2LO and 4LO). Where on the shift lever are you getting the 2LO feature? are you in 4LO, Neutral, or inbetween? Look at the shift selector lever on the t-case to see if you're not stuck inbetween one of those ranges listed.

"2LO" is between neutral and 4Lo. Maybe this weekend I will take her out and take a look at the RPMs in each gear. And like I said, the shift lever pattern is off as well, I pull straight back into every gear.

Now when you, Blade, were talking about breaking parts, is that in 4Lo or in 4 wheel drive in general? I have had no problems with the 4 wheel drive since I got her (over a year ago), last snow we got I put her in 4 a few times, no issues. I have not yet had to use 4Lo as I don't play in the mud or snow all that often. /emoticons/[email protected] 2x" width="20" height="20" /> Boyfriend gets mad when I break things /emoticons/[email protected] 2x" width="20" height="20" />

If is is my oil pump, is it essential to pull it apart right away?

Again guys I am not bragging or what ever about this, just curious as none of my other Broncos did this... So nobody think I am make this all up or anything.... ok? /emoticons/[email protected] 2x" width="20" height="20" /> If something is wrong, so be it. It really doesn't change things. But all your help is appreciated!

From your description, O do believe the shifter is getting stuck between the 4Hi and 4LO ranges. Sometimes this is caused by gunk buildup on the shift linkage, but other times it's an internal problem. There are some write-ups in the Tech Articles forum under the link to "MiseK5 Homepage" on the B-W 13-56. You might look at those and read up on the common oil pump problems.

Alright will do. Never hurts to learn /emoticons/[email protected] 2x" width="20" height="20" /> Will I do any damage continuing to use 4Hi? Like I said I haven't used 4Lo but 1 or 2 times since I bought her...

If the oil pump is loose or damaged, or the shifter gets hung up, you could do further harm to the t-case by driving it, period, even in 2WD. You might get some estimates on repair, and perhaps look for a spare one from a salvage yard. The local yards charge $350-$400 for a use 13-56, but I recently bought one for $150 from a dude parting out his Bronco.

Not that I don't want to fix it if necessary but... when we orginally tested the 4wd we tried it out in one or two mud holes. We just spun in each gear to see if they worked. ( I know probably not the way we should have tested it) And I haven't used 4Lo since. Could it be that we just didn't pull back the whole way into 4Lo both times?

Yes, that's certainly possible. It's often really hard to shift into 4LO, as it seldom if evre gets used by most folks. Get the Bronco on dirt or gravel (not pavement), and shift into 4HI, lock in the hubs if you have manual ones. Drive slowly, and have someone alongside look at the front driveshaft to see if it 's turning. You can test it on pavement at slow speeds, as it will be much harder to turn than in 2HI. Get back on the dirt and shift into 4LO, and check the shift selector position. Then drive a bit to see if the front shaft turns and the RPM's increase as you're moving. Shift back into 4HI, and make sure that 4LO disengages. It may take a few attempts to get in and out of 4Lo if the shift lever is sticking or there's a problem inside the t-case. Check the fluid level, too, it uses auto matic transmission fluid same as your auto tranny. JSM84

If its between neutral and 4 lo then it is probably sliding the shaft coupler just enough to enguage the planetary gears and not the sprocket for the front drive shaft . What I was saying about parts breaking is that the coupler isnt fully enguaged so it doesnt have the load capacity it would normally and could break the coupler . If it were me I would definately take it apart and look wont cost anything but some time and a tube of sealer , Nothing magical about them pretty straight forward but then you would know for sure that its ok . I have seen quite a few blow chunks had the one in my 95 F150 extended cab come apart @ 50 MPH and dropped into 4 Lo ( Not good ) cause of failure was a hardened and cracked oil pump pick up hose . $400 later I was back on the road but that will never happen again having to pay that much I have like 10 spares now and more coming . /emoticons/[email protected] 2x" width="20" height="20" />