Transfercase adapaters - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Walts_restoration · 01-15-2009, 03:45 PM

I have two questions.

1. Does anyone make a th400 to np203 adapter? I have a buddy looking for one, 73-77 is what he said he needs. Are their any aftermarkets that are as good or better than the originals?

2. I have an 86 k5 and would like to swap the 700r4 for a th350 while the engines out. What all do i need? i think some of the 82s used a th350 np208. iirc ive seen some th400 np208s. Does this effect the driveshaft legth at all? or is it a bolt in place kinda deal? im using the 350 from a 75 k5 with a th350 so the th350 kickdown is no problem. Thanks guys.

**kwmech** · 01-15-2009, 04:45 PM

I've got a 400/205 adaptor I can sell. 200 plus the ride

Walts_restoration · 01-15-2009, 05:09 PM

ive got a wtb thread in the 73-87 swapmeet section, do you have a phone number? I dont need one but my buddy does.

drbyrdman · 01-15-2009, 09:41 PM

I bought one from Advance adapters. i used a 400 out of a 71 Vette.

Walts_restoration · 01-16-2009, 12:11 AM

did you have to trim the tailshaft length? My buddy is planning to use a 2wd trans in his 4x4, and heard he had to drim the tailshaft an inch i beleive.

**kwmech** · 01-16-2009, 12:02 PM

No trimming needed on the 2wd. PM'd you my number

Walts_restoration · 01-16-2009, 07:28 PM

Turns out he has an np203 not a 205, told me wrong. sorry for the confusion.

Anyone able to tell me about swapping my 700r4 for a th350 and np208 in my 86? thanks guys.

drbyrdman · 01-16-2009, 08:26 PM

Quote:

Originally Posted by Walts_restoration

did you have to trim the tailshaft length? My buddy is planning to use a 2wd trans in his 4x4, and heard he had to drim the tailshaft an inch i beleive.

i have not got to the drive shafts yet.

01-15-2009, 03:45 PM	#1
Walts_restoration Real Projects never die Join Date: Jan 2007 Location: Lawrence, kansas Posts: 1,508	Transfercase adapaters I have two questions. 1. Does anyone make a th400 to np203 adapter? I have a buddy looking for one, 73-77 is what he said he needs. Are their any aftermarkets that are as good or better than the originals? 2. I have an 86 k5 and would like to swap the 700r4 for a th350 while the engines out. What all do i need? i think some of the 82s used a th350 np208. iirc ive seen some th400 np208s. Does this effect the driveshaft legth at all? or is it a bolt in place kinda deal? im using the 350 from a 75 k5 with a th350 so the th350 kickdown is no problem. Thanks guys. __________________ Ill put it this way, ive got a few lawn ornaments My name tag says Ryan KansasTwister On other forums Last edited by Walts_restoration; 01-16-2009 at 07:29 PM.

01-15-2009, 04:45 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,430	Re: Transfercase adapaters I've got a 400/205 adaptor I can sell. 200 plus the ride

01-15-2009, 05:09 PM	#3
Walts_restoration Real Projects never die Join Date: Jan 2007 Location: Lawrence, kansas Posts: 1,508	Re: Transfercase adapaters ive got a wtb thread in the 73-87 swapmeet section, do you have a phone number? I dont need one but my buddy does. __________________ Ill put it this way, ive got a few lawn ornaments My name tag says Ryan KansasTwister On other forums

01-15-2009, 09:41 PM	#4
drbyrdman Registered User Join Date: Feb 2006 Location: San Diego Posts: 631	Re: Transfercase adapaters I bought one from Advance adapters. i used a 400 out of a 71 Vette.

01-16-2009, 12:11 AM	#5
Walts_restoration Real Projects never die Join Date: Jan 2007 Location: Lawrence, kansas Posts: 1,508	Re: Transfercase adapaters did you have to trim the tailshaft length? My buddy is planning to use a 2wd trans in his 4x4, and heard he had to drim the tailshaft an inch i beleive. __________________ Ill put it this way, ive got a few lawn ornaments My name tag says Ryan KansasTwister On other forums

01-16-2009, 12:02 PM	#6
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,430	Re: Transfercase adapaters No trimming needed on the 2wd. PM'd you my number

01-16-2009, 07:28 PM	#7
Walts_restoration Real Projects never die Join Date: Jan 2007 Location: Lawrence, kansas Posts: 1,508	Re: Transfercase adapaters Turns out he has an np203 not a 205, told me wrong. sorry for the confusion. Anyone able to tell me about swapping my 700r4 for a th350 and np208 in my 86? thanks guys. __________________ Ill put it this way, ive got a few lawn ornaments My name tag says Ryan KansasTwister On other forums



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