Transfer case install.
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Transfer case install.
Hi, I am new to the 4X4 scene and need advice. I purchased a 86 F150 C6 4X4 Lariat off Ebay that had been wrecked. It was advertised with a 351W crate engine with 16,000 miles. Turns out that the sellers brother installed the engine and it actually had 46,000 miles on it. The opening bid was $200.00, I couldn't resist, and no one else bid on it, so I got it. The truck had slid into and hit light pole in front of the drivers side rear axle. The rear tire hit the pole tearing the front spring hanger nearly completely out, leaving the drivers of the axle about 3 1/2" to the rear. The drive shaft was ripped out and hasn't been seen since. The driver shifted into 4W Hi and drove home successfully. They then let someone have the rear case cover, so when I got it everything inside was exposed.
I purchased another BW 1345 tc off Ebay that came from a F250. This tc has a Ujoint on both sides rather than a cone shaped tailshaft facing the rear.
I need to know what to expect and the best procedure method of seperating the ts from the C6. Do I need to purchase a gasket kit?? Will this replacment ts work with a 9"?? Where do I need to look for a workable replacement driveshaft??
Thanks for tips and advice
John
I purchased another BW 1345 tc off Ebay that came from a F250. This tc has a Ujoint on both sides rather than a cone shaped tailshaft facing the rear.
I need to know what to expect and the best procedure method of seperating the ts from the C6. Do I need to purchase a gasket kit?? Will this replacment ts work with a 9"?? Where do I need to look for a workable replacement driveshaft??
Thanks for tips and advice
John
Post Fiend
Joined: Jul 2003
Posts: 11,945
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From: Spokane, WA
You should be able to purchase a new tail shaft housing for the C-6 to convert it to a "2wd" tranny with a yoke rather than just an output shaft. Then you can have any driveline shop build you the intermediate shaft. You'd need to fab crossmembers and all that good stuff though. To be honest, for what you've got into the truck, I wouldn't try going to a divorced T-case now . . . it'll end up costing you more than you paid for the rig.
I'm not too familiar with the BW cases so I don't know if the new one can be canabalized for parts to put the old one back together but if not I would just see about getting a proper replacement case or even going to a 205. It'll be far less work and $$.
I'm not too familiar with the BW cases so I don't know if the new one can be canabalized for parts to put the old one back together but if not I would just see about getting a proper replacement case or even going to a 205. It'll be far less work and $$.
Post Fiend
Joined: Sep 2000
Posts: 8,238
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From: Oregon
Welcome to the armpit of FTE John. I don't frequent the '72 forum much anymore so I hardly ever bump into you these days. Anyways, I don't know much about the bw transfer cases but others in here do so I'll let them field that question. Sounds like you really got a screaming deal. Yes, it will work with a 9"...non issue there. You should have a local shop that can make you a driveshaft, or root around in the junkyard to find a replacement for cheap. If you plan on having another mid-life crisis and getting crazy with this off-road you can look here: www.highangledrivelines.com for the ultimate in tough, custom driveshafts. I run one myself.
Hotshot
Joined: Dec 2003
Posts: 18,423
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From: iowa
I think Ivam may have misunderstood you when you mentioned the yolks on both sides and thought you ment on the both sides of the main shaft, and not both of the out puts, this isn't a problem other than you will have to watch that the front output shaft yolk is the same for the old and new cases they might have different yolks which is fine you can either swap them or change your ujoint on the front drive shaft, No you don't need a gasket to match it up to the trans you just unbolt the six bolts, and bolt the new one up using rtv, I prefer blue for this, and for driveshafts after you get the TC in and the rear end in (yes you can put a 9in in real easy, I did it on my 86 with no problems ) then measure your distance, and head to the junk yard the driveshaft I picked up was sitting in the bed of a 79 chev 3/4ton but don't know if that is what it came from or not but was the correct length, and correct ujoints size so bolted it in. if all else fails find on that is longer than you need, and take it to a driveshaft shop, and have it shortened, and trued this cost me 35 when I built the new truck, but if you have one to short it costs more to have it lengthened.
Thread Starter
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Yeah Guys, I don't do such a good job splaining things sometimes.
I want to put the truck back as a 4X4. There was no tag on what's left of the tc and from what I could gather 86 F150s came with a BW 1345. There was a tail shaft looking piece in the cab that looks like the tailshaft of the C6. I presumed that it fit on the rear of the tc and the driveshaft slid in just like it does on a 2wd C6. The tc looks very simular to a BW 1356 that was under a 88 F150 that I had.
I won a BW 1345 tc off Ebay that came from a F250. This case has the Ujoint to the front just like the one under the truck now, but does not have the tail shaft towards the rear but another Ujoint instead.
Having no experence with tcs I presumed that when seperated from the C6, the C6 would loose fluid. I didn't know what I needed to have in hand at the time of fitting the new tc to the C6. I figured I could move the truck around under it's own power in front wheel drive. until I could get the chassis sanded, gas tanks repaired and body replaced.
I am way tooo lazy to build a wild mud truck. Way too much washing to do later. After being under both the 86 & 88, I see what mud does to one underneigth.
thanks for all of the great advice.
John
I want to put the truck back as a 4X4. There was no tag on what's left of the tc and from what I could gather 86 F150s came with a BW 1345. There was a tail shaft looking piece in the cab that looks like the tailshaft of the C6. I presumed that it fit on the rear of the tc and the driveshaft slid in just like it does on a 2wd C6. The tc looks very simular to a BW 1356 that was under a 88 F150 that I had.
I won a BW 1345 tc off Ebay that came from a F250. This case has the Ujoint to the front just like the one under the truck now, but does not have the tail shaft towards the rear but another Ujoint instead.
Having no experence with tcs I presumed that when seperated from the C6, the C6 would loose fluid. I didn't know what I needed to have in hand at the time of fitting the new tc to the C6. I figured I could move the truck around under it's own power in front wheel drive. until I could get the chassis sanded, gas tanks repaired and body replaced.
I am way tooo lazy to build a wild mud truck. Way too much washing to do later. After being under both the 86 & 88, I see what mud does to one underneigth.
thanks for all of the great advice.
John
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Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
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Hotshot
Joined: Dec 2003
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From: iowa
Well my 86 F150 came with a np208, but I think they could come with either but not for sure on that. Yes when you take the tc off then the transmission is open, and will spill fluid if it is high in the front like having the front end jacked up, and actually if your truck has a C6 it has been swapped in as I don't think that was even an option in 86 only the aod so it could have had any transfer case attached. The DS that you are looking for is like the one I ran, that I didn't know what it came from but I found one just like it that was in a 79 F250 long box with a np 205, and a Dana 60 rear, was 2 piece, and the correct length. Hope that help some.
BTW the 9in I usedwas from a 83 F150, and it bolted in with no problems everything lined up but they are a different length than the 8.8 so if you are thinking of doing this at some time do it before you get a driveshaft or you will have to change the DS again.
BTW the 9in I usedwas from a 83 F150, and it bolted in with no problems everything lined up but they are a different length than the 8.8 so if you are thinking of doing this at some time do it before you get a driveshaft or you will have to change the DS again.
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Thread Starter
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Rob, My truck does not have OD, but does have the 31 spline 9". I have read many post over the years here about the NP line of trannys and transfer cases, and usually good comments. I would love to have an AOD behind the W to give it a little more manners with the petro. I have a one that I pulled from a van, but it has the 2wd tail shaft. Maybe I should try to find a tail shaft and have it rebuilt. I haven't heard of problems with the BW ts so I don't have any opinions.
Where do I need to look for the donor expanding rear drive shaft?
John
Where do I need to look for the donor expanding rear drive shaft?
John
Lead Driver
Joined: May 2000
Posts: 9,236
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From: Senoia, GA
Originally Posted by jowilker
Where do I need to look for the donor expanding rear drive shaft?
in the 80-86 model year trucks they used the BW1345, BW1356, or the NP208.
The Ford C-6 is a heavy duty 3 speed automatic transmission used from 1968 until 1986 in heavy duty Ford F-series trucks. It is 20 inches long and has 17 bolts holding on the pan
-cutts-
EDIT: this might help in ID'ing your case http://truckparts-specialists.com/ca...ture-index.htm
Last edited by fishmanndotcom; Sep 27, 2004 at 11:57 AM.
Hotshot
Joined: Dec 2003
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From: iowa
if you are thinking of changing to the AOD then you might be just as well of finding one from a 4wd, and having that rebuilt, you might even be able to swap someone straight up for the one from the van. If you have the 9" in the 86 it has been swapped in, and that is a good thing, and yes I have run NP cases forever and never had any real problems with any of them, with the exception of my 2 newer vehicles have never had a BW in anything I really worked hard off road.
Fishy is right basically any longbox pickup will probably be a good place to check for the donor DS although alot of the 1 tons, and most of the crew cabs have a carrier bearing, so those won't work, I would look in any longbox standard cab 4x4 1/2 or 3/4 ton trucks of basically any manufactor for a donor, just have your measurements handy, and a tape measure, if you can find a 80-83 ford F150 in that configuration listed above it probably will have the exact shaft you are looking for.
Fishy is right basically any longbox pickup will probably be a good place to check for the donor DS although alot of the 1 tons, and most of the crew cabs have a carrier bearing, so those won't work, I would look in any longbox standard cab 4x4 1/2 or 3/4 ton trucks of basically any manufactor for a donor, just have your measurements handy, and a tape measure, if you can find a 80-83 ford F150 in that configuration listed above it probably will have the exact shaft you are looking for.
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Jason, I am sure of the C6, and had seen the link that you posted. Neither the 1345 or 1356 in the picture show the tailshaft on the rear of the case. There was a tail shaft in the cab of the 86 and my 88 with 1356 had one.
Rob, Thanks for the advice. I believe 86 was the last year for the 9" and both it and 8.8 were available. Ford is well known for using up parts. lol
I would be happy to swap as long as I didn't get involved with shipping. A tailgate to tailgate swap for an hour or so drive would be in a window. Might try posting in da classifieds.
The first thing I need to do is get it working front wheel drive.
John
Rob, Thanks for the advice. I believe 86 was the last year for the 9" and both it and 8.8 were available. Ford is well known for using up parts. lol
I would be happy to swap as long as I didn't get involved with shipping. A tailgate to tailgate swap for an hour or so drive would be in a window. Might try posting in da classifieds.
The first thing I need to do is get it working front wheel drive.
John
Logistics Pro
Joined: Jan 2002
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From: GANS
I don't know what these guys are talking about but-
the NP & BW1345 will swap perfectly. almost all ford tcase adapters are the same, except for the NP205, and you have an NP208..
Make sure the 9" didn't get tweeked. the housings aren't super strong, and can be bent fairly easy.
after you get the tcase on, you'll need to go find a rear drive shaft without a slipyoke and you'll have to make sure the front driveshaft fits as well.
the NP & BW1345 will swap perfectly. almost all ford tcase adapters are the same, except for the NP205, and you have an NP208..
Make sure the 9" didn't get tweeked. the housings aren't super strong, and can be bent fairly easy.
after you get the tcase on, you'll need to go find a rear drive shaft without a slipyoke and you'll have to make sure the front driveshaft fits as well.
Thread Starter
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Thanks for the advice Doug, Any suggestion for checking the tweeking. I'm thinking tire to tire or backing plate to plate.
I've had to change out the brake booster on my main truck, so I don't know if I'll get the tc swap done today, as that truck is about 50 min away, and it's afternoon already.
I'll do something wrong or right. lol but nothing if I don't get away from this darn puter.
John
I've had to change out the brake booster on my main truck, so I don't know if I'll get the tc swap done today, as that truck is about 50 min away, and it's afternoon already.
I'll do something wrong or right. lol but nothing if I don't get away from this darn puter.
John