73redblaze
1/2 ton status
i have a th400 with a np208. can i swap it for a 205 without any problems? also what is the diffrences? advantages?
CK5
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np208 vs np205
- Thread starter 73redblaze
- Start date
odin
1/2 ton status
The output shaft and adapter on your TH400 wont work with a NP205.
205 is much stronger than the 208 a worthy upgrade IMO.
205 is much stronger than the 208 a worthy upgrade IMO.
yep. i found that out when i rebuilt the 400 for the np208 instead of the one for the 205
ive had great luck with the 208, never broke one yet. i did explode a 203 though
If you have the correct adapter and the correct input gear on the 205 then no problems bolting them together.
The 205 is an all gear, cast iron t-case with a low range of 1.96:1, the 208 is a chain driven, aluminum t-case with a low range of 2.62:1.
Advantages of the 205 are bullet proof case, all gear, fixed yoke rear output (not all 205's, after 1980 they were slip yoke rear).
Disadvantage is heavy case and not as low of gearing.
Advantages of the 208 are light weight and low gearing.
Disadvantges are aluminum case, slip yoke rear output and chain driven.
Wasatch K5
1/2 ton status
I know this wasn't part of your question, but a NP 241 was the follow-on to the 208. It's supposedly a fair bit stronger than a 208 and has slightly lower gearing. It's still an aluminum case and chain drive, though.
blazin' j
1/2 ton status
and they make a slip yoke eliminator kit for em too...
I'm bias.
My 73 Jimmy had a 465 mated to a 205. I swapped to a th350/NP205 combo.
My 74 blazer had a TH350/NP203. I swapped in an NP205 because I was having trouble with the NP203 shifter and I had the transfer-case from my 73. After I blew up my TH350, I put a TH400/NP205 combo.
If I remember right, when I inquire about the price of a used NP208 locally, people would want the same price as an NP205. I would take the NP205 any day. I would only run the NP208 if it came with a vehicle.
My 73 Jimmy had a 465 mated to a 205. I swapped to a th350/NP205 combo.
My 74 blazer had a TH350/NP203. I swapped in an NP205 because I was having trouble with the NP203 shifter and I had the transfer-case from my 73. After I blew up my TH350, I put a TH400/NP205 combo.
If I remember right, when I inquire about the price of a used NP208 locally, people would want the same price as an NP205. I would take the NP205 any day. I would only run the NP208 if it came with a vehicle.
i got a really nice 205 for far less than it cost to rebuild my tired 208. its sort of preventative in my mind.
k30
Registered Member
I got a 1987 k30 6.2 diesel turbo 400.What case do I likely have the 208 or 205 Is it stamped anywhere ?? Thanks
it will have a plate on it that says 205 on the front face of it.
dieselponyexpress
1/2 ton status
As long as it is not a CUCV M1008 K30, which were equipped with a NP208.
If so there's a plate on back side with 208 and the gearing (2.61) on it.
Walter
