Transfer case comparison - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jasons · 02-24-2009, 01:01 PM

I have a 70 Blazer I'm thinking of replacing the TH350 with a 700R4. The person who has the transmission also has 208c and 241c transfer cases.

What are the differences between these?
How do they compare size wise to a 205 transfer case?
Would it be easier to replace the existing 205 with one over the other?

I'm trying to decide if its worth switching to OD. If I do I have another vehicle I'll use the TH350/NP205 combo in.

**special-K** · 02-24-2009, 02:48 PM

It would be easiest to use one o the later transfer cases.The original 205 would need adapting.I`d go with the 241 out of the later cases.They are all compatible in size.It won`t be an issue.
What size tires are you running?And,what gear ratio?

jasons · 02-24-2009, 03:18 PM

It has 31" tires. Currently it has 3.07 gears, They guy with the parts has 3.42 axles that came out of a 89 Suburban along with the transmission that I'll get also. I think that combo should work pretty well for me. The Blazer is mainly used for highway driving and pulling a trailer every once in a while.

skchevota · 02-24-2009, 11:40 PM

Yes, the 241 is a good case. it is stronger than the 208, it uses a magnisium case insted of aluminim and has a syncro from 2wd ti 4 hi for shift on the fly....

02-24-2009, 01:01 PM	#1
jasons not enough hours in the day Join Date: Jan 2009 Location: Axtell, NE Posts: 550	Transfer case comparison I have a 70 Blazer I'm thinking of replacing the TH350 with a 700R4. The person who has the transmission also has 208c and 241c transfer cases. What are the differences between these? How do they compare size wise to a 205 transfer case? Would it be easier to replace the existing 205 with one over the other? I'm trying to decide if its worth switching to OD. If I do I have another vehicle I'll use the TH350/NP205 combo in.

02-24-2009, 02:48 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Transfer case comparison It would be easiest to use one o the later transfer cases.The original 205 would need adapting.I`d go with the 241 out of the later cases.They are all compatible in size.It won`t be an issue. What size tires are you running?And,what gear ratio? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 02-24-2009 at 02:48 PM.

02-24-2009, 03:18 PM	#3
jasons not enough hours in the day Join Date: Jan 2009 Location: Axtell, NE Posts: 550	Re: Transfer case comparison It has 31" tires. Currently it has 3.07 gears, They guy with the parts has 3.42 axles that came out of a 89 Suburban along with the transmission that I'll get also. I think that combo should work pretty well for me. The Blazer is mainly used for highway driving and pulling a trailer every once in a while.

02-24-2009, 11:40 PM	#4
skchevota Registered User Join Date: Oct 2006 Location: Evans, Colorado Posts: 530	Re: Transfer case comparison Yes, the 241 is a good case. it is stronger than the 208, it uses a magnisium case insted of aluminim and has a syncro from 2wd ti 4 hi for shift on the fly....

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