4.0 + NP435 X BW1350 X BW1354 X 3.73 = 153 to 1 crawl ratio | Page 5 | Ford Explorer Forums

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4.0 + NP435 X BW1350 X BW1354 X 3.73 = 153 to 1 crawl ratio

wow that might be jsut what you wanted to hear Matt
 



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I hav been in columbus ohio for the last week and a half or so for work. I fly home tommorow morning and plan on working on it when I get home.

Racerx70, Thanks for the info on the 300ci flywheel. I may have to try and get one to see if it will work.

If I cant get the flywheel clutch problems worked out then I will build the doubler and then go back to the drawing board on doing the tranny swap.

I need to get it figured out soon cause I need to get the ranger back on the road.
 






Sent the ouput shaft for the tcase out to be resplined. I hope to have it back in the next few weeks. I am planning on installing the second t case first and run it for awhile then do the np435. The reason I decied to do this is $$$ and if I have any problems it will make it easier to isolate them as I will be doing a solid axle swap at the same time as the doubler install. Look for more info probably in a month or so if all things go according to plan.
 












going to try and make it. It will depend on work. My front wheelbearings are making some noise so I need to fix that first.
 






I got my T case output shaft back from being resplined. It was cut down heat treated and then cyrogentically frozen to hopefully add a little more strength.

I also decided to swap in some 4.88 gears as well. I plan to run the doubler with the stock tranny for a while. This will put in at around 110 to 1. When I swap the np435 in it will put me at 190 to 1.

As soon as do the gear swap and do the solid axle swap I will try to finish up the doubler. Hopefully it will be in the next few weeks.
 

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Any progress Matt?

I talked to someone tonight about crawl box adapters for Ford Explorers/Rangers... Part of the discussion was if the bw1354 is tough enough to stand up to a box in front of it.

We discussed replacing the tail shaft housing on the 5spd with an adapter to a toyota reduction box, into a Tacoma tcase.

This would give 1:1, 2.58:1, 4.7:1 (or 4.0:1 or 4.9:1), and then start multiplying it out.
 






Been super busy with work and other personel emegencies. The truck is sitting with no front axle just like it was 2 months ago. I have a piece of 5.5" diamiter 3/16 driveline tubing that I need to cut into a 2" length so that I can weld my adapter together. I still think it will all work. Although a 2" body lift would sure make it easier to fit the np435. Right now I am going to just put the doubler in and see how it does. Then try and do the np435 later on.

I thought about the toyota options but they are 21 or 23 spline and by the time you start making up all these adapters and buying t cases it will make it pretty expensive to go that route.

As far as the 1354 holding up Im not too sure. I did tear a 1354 electric down and noticed it uses a 6 spur gear planitary vs the 4 gear one in my 1350. I know some people have had good luck with them and some havent. I am going to try and incorporate a second mount into it for the tranny cross member to hopefully make it a bit stronger. I am hoping to get some time this weekend to work on the truck as our trip to the dusy has been canceled.
 






RockRanger said:
I am going to try and incorporate a second mount into it for the tranny cross member to hopefully make it a bit stronger.
Matt, what does this mean? Are you going to support one of the T-cases?
 






RangerX said:
Matt, what does this mean? Are you going to support one of the T-cases?

Anytime you can support both cases in a dual case setup is a win.

It reduces the strain and stress on the drive train.
 






Are transfer cases normally unsupported? I would think with two, that you would need to do something to take the strain off, just because of the added leverage of the extra case.
 






Usually, one case is fully supported, and normally that's the last transfer case. On some transfer cases, when you keep just the portion known as the reduction box, you loose the transfercase mounts.

Having two mounts vs. one means the mounts have a better chance of resisting the torque forced movement, ie, in the zuk, when it's in low-low the shift knobs have a tendency to move into my lap. I do have dual tcase mounts in the zuk; the people who I know with single t-case mounts normally end up with the mounts torn apart, along with the engine mounts. I also do not have captured engine mounts in the zuk, which I'm working on correcting with the 2.0 liter conversion.
 






tdavis said:
Anytime you can support both cases in a dual case setup is a win.

It reduces the strain and stress on the drive train.
Yeah, I figured that. I want to know how Matt's going to do it, if that is what he meant, so I can do it, too. :D

The stock T-case is unsupported. Having it eight inches further back (my doubler length), and still hanging off the trans, worries me.
 






Instead of just using the tranny cross member to support the back of the tranny and the 2 tcases I am going to try to make a piece that comes back and bolts between the two t cases using the bottom bolts of the tcase. I am still not 100% sure how I am going to do it yet. Once I get it up and in there then I will try to figure it out.
 






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