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02-10-2005, 06:04 PM | #1 |
Senior Member
Join Date: Apr 2000
Location: Oregon
Posts: 2,512
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T400 with NP205 questions?
Who can verify the lengths of a few setups for me. I would like distance from front of bell housing to center of yoke on rear output shaft of transfercase on a T400 and NP205 setup? Is there a difference in length depending on which model adapter is used? (there is the newer round adapter and figure 8 older version).
Also need the same on a T350 and NP205 setup (version I will switch away from)? and 700R4 with T350 adapter and NP205 transfercase? I hope to pick one and keep the stock mounting location on transfercase cross member which allows me to keep my drivelines too and this will hopefully move motor new BB 2-2.5" forward in engine compartment. I want to lay it all out before I buy a used setup to rebuild or order a Bowtie Overdrive 700R4 and find out lots of stuff moves or doesn't fit perfect. thanks for advise and help.
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Bob |
02-11-2005, 10:24 AM | #2 |
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Location: Dallas, TX
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I am also interested in this. TTT
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1968 GMC 305 V6 3/4 4x4 Stepside 06 Corvette Daily Driver Dallas TX |
02-11-2005, 01:28 PM | #3 |
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Join Date: Jul 2003
Location: N. Alabama
Posts: 132
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The t350/205 stock combo is the shortest, IIRC a 700 is 1.625" longer than a t350 from bellhousing to rear.
There are 3 different lengths of t400 output shafts used in 4wd's. Several different 205 inputs,ie 32 spline short and long, 27 spline t350 type, and a coarse spline used on 4spds, most of which are not interchangable. Lot's of good info on the ORD site. http://www.offroaddesign.com/catalog/doubler.htm Moving the engine forward is a good way to do the swap. Just watch oil pan clearance to front axle, shouldnt be a problem with a small lift. |
02-11-2005, 05:20 PM | #4 |
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Join Date: Apr 2000
Location: Oregon
Posts: 2,512
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length might help
I think added length from T400 and 205 might help with moving engine forward to clear firewall. As far as I have read on offraod design page (and their pics) and others the input shaft on 205 that came behind T400 was the short female 32 spine version. I was hope to figure out if teh round and figure 8 adapter was same length. Also would like to know the length of the adpater kit AA sells to use 2 wheel drive T400 and my stock tranfercase with the 27 spline male input shaft.
The ORD website says they sell a conversion kit to modify my 205 to take the T400 adapter for $200. There is also some machine work to do to the 205 case. Then I need the T400 adapter and a good T400 to rebuild. What are the different T400 trannys I will find?
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Bob |
02-11-2005, 06:04 PM | #5 |
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Join Date: Aug 2001
Location: West Plains,MO
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Unfortunately I don't have my truck right now to give you measurements because it's getting painted, but wanted to say that I'm running a th400 and np205 with a big block in my 4x4. Basically what I did is connect all three together and dropped the transfer case in the original holes; this gave me plenty of firewall clearance with the BB, with no other mods like body lift. All I had to do was move the motor mounts forward and drill new holes. ORD is who I used for the th400/np205 conversion. Hope this helps a little?
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72CheyenneSuper1ton4x4BigBlock |
02-11-2005, 06:20 PM | #6 |
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Location: Oregon
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nice pics
A few questions.
Did you test fit your brake booster and alternator brackets? Was ORD the suppler on trans or just conversion parts? Did you use a TH350 transfercase to start with? I assume that is a TH400 adapter, is it the newer round verison or older figure 8 version? Do you remember how far the engine moved forward? Very nice setup and great help. thank you.
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Bob |
02-11-2005, 06:41 PM | #7 |
Broke
Join Date: Aug 2001
Location: West Plains,MO
Posts: 385
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Hey cheyenne10,
Did you test fit your brake booster and alternator brackets? Yes the fit was fine, I'm running a 90's model hydraboost, and the alternator fits just fine also. Was ORD the suppler on trans or just conversion parts? Just the conversion parts. Did you use a TH350 transfercase to start with? No I bought the transfer case from ORD. I assume that is a TH400 adapter, is it the newer round verison or older figure 8 version? Older figure eight. Do you remember how far the engine moved forward? I believe about 2 1/2 inches. Thank you.
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72CheyenneSuper1ton4x4BigBlock Last edited by Bram; 02-11-2005 at 07:01 PM. |
02-12-2005, 02:08 AM | #8 |
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Join Date: Apr 2000
Location: Oregon
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205 rear output shaft
IS that the fixed yoke style rear 205 output shaft?
Can you share what T-case cost from ORD?
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Bob |
02-12-2005, 12:43 PM | #9 |
Account Suspended
Join Date: Jun 2003
Location: PA
Posts: 1,411
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Twin Electric Fan??
Bram,
beautiful setup, Great Pics!! Question: Who makes that electric fan setup you have?? Was it easy to wire?? Thanks, 72longbed |
02-12-2005, 08:31 PM | #10 |
Broke
Join Date: Aug 2001
Location: West Plains,MO
Posts: 385
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I got the fans with the Be Cool radiator. I also put in a brand new wiring harness, so yes it wasn't to bad to wire because it was pre-wired.
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72CheyenneSuper1ton4x4BigBlock |
02-14-2005, 12:08 PM | #11 |
Broke
Join Date: Aug 2001
Location: West Plains,MO
Posts: 385
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Fixed Yoke.
cheyenne10, yes it is the fixed yoke style. I don't remeber the total cost, but I can tell you it was expensive. If you give them a call they can tell you what it would cost for what you want to do, they are pretty good fokes.
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72CheyenneSuper1ton4x4BigBlock |
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