BW 1356
Elder User
Joined: May 2001
Posts: 760
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From: Billings, MT
BW 1356
If they used 'em for more than a decade in F-350's, they can't be all bad. The one in my F-250 with 165,000 miles on it has performed flawlessly.
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56, Sterling 10.25" (4.10:1), Dana 44 HD (4.09:1), twin K&N's, no muffler, stock lo-flo cat, Bosch Platinum Plugs (0.060") MSD 6A and TFI Blaster Coil
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56, Sterling 10.25" (4.10:1), Dana 44 HD (4.09:1), twin K&N's, no muffler, stock lo-flo cat, Bosch Platinum Plugs (0.060") MSD 6A and TFI Blaster Coil
Post Fiend
Joined: Nov 2001
Posts: 7,698
Likes: 4
From: Neenah, Wisconsin
BW 1356
Well the aluminum case is weaker than a cast iron case, and the low range isn't all that low. But as said, they were used in one tons behind diesels so they are a good strong case.
Ryan
Ryan
Elder User
Joined: May 2001
Posts: 760
Likes: 0
From: Billings, MT
BW 1356
The Low Range on the 13-56 is 2.69:1. It's about average nowadays for a chain driven case. The almost legendary iron-cased, gear-driven NP 205 has a low range of only 1.96:1 or something to that effect. Unless you're into hard core rock crawling or just lack torque bad, 2.69:1 is just fine.
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56, Sterling 10.25" (4.10:1), Dana 44 HD (4.09:1), twin K&N's, no muffler, stock lo-flo cat, Bosch Platinum Plugs (0.060") MSD 6A and TFI Blaster Coil
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56, Sterling 10.25" (4.10:1), Dana 44 HD (4.09:1), twin K&N's, no muffler, stock lo-flo cat, Bosch Platinum Plugs (0.060") MSD 6A and TFI Blaster Coil
Posting Guru
Joined: Oct 2000
Posts: 1,290
Likes: 0
BW 1356
Thanks for the replies. I was just wondering since I know as much about transfer cases as I do rocket science. Now that winter is here I am in 4wd a lot and was just wondering. One more question, I have manual hubs, but when I shift it out of 4wd to 2wd it takes a long time for it to go into 2wd. If I backup it will pop into 2wd, I have been told this is due to binding, but most other trucks I see go back into 2wd almost instantly. Is there a problem here or is this common. Is there a fix?
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
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Post Fiend
Joined: Nov 2001
Posts: 7,698
Likes: 4
From: Neenah, Wisconsin
BW 1356
Yeah..my apoligies....i was incorrect when refering to a lousy low range. I must have been drunk when writing it...
I had the 205 and 13-56 low ranges mixed up in my head. anyhow...13-56's rule.
Ryan
I had the 205 and 13-56 low ranges mixed up in my head. anyhow...13-56's rule. Ryan
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