2pc. Driveshafts??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**special-K** · 12-27-2007, 12:30 PM

Where`s the rhyme or reason with these.Honestly,I thought all 4wds had one piece and this was a 2wd thing.The t-case shortens the length already and everything I`ve ever had was 1pc.But,I`ve recently seen some 2pc deals on both longbeds and Suburbans.

1969K10 · 12-28-2007, 02:41 AM

My guess, is that it helps keep the driveline up between the frame rails for as long as possible to prevent damage to it. but I'm guessing. Granted my truck is a frankenstein when I bought it, and has just gotten worse, but mine came with a 2 piece rear.

**special-K** · 12-28-2007, 04:32 AM

I`ve had mostly K/20s,SWB K/10s,and K/5s.They`ve all been 1pc.I`ve had two LWB K/10s,a`69 with 3spd and a`72 with TH350 and they had 1pc.I just don`t understand what determines when a 2pc gets installed.I only recently came to realize ant 4wds had 2pc.

**Yukon Jack** · 12-28-2007, 07:02 AM

My 69 K20 has a two piece driveshaft. It was originally a 3 on the tree/Rockwell. It is now an SM465/Rockwell. I've replaced the carrier bearing once.

**special-K** · 12-28-2007, 09:51 AM

Thanks.I`m wondering if the`69 I had might have had a 2pc and I just didn`t know it.I didn`y do much with it.It was only about 10 years old and I didn`t have it trhat long.I sold it to get a K/20`71.

1969k10stepside · 12-28-2007, 10:03 AM

My 69 (Back when it was a K10 and didn't have 3/4 ton running gear) had a 2 piece setup..I've seen some older ones (67-68s) that had a one piece and then all the ones with the NP205 have had the one piece that I've seen...I don't know why some did and some didn't..

68K20 x Drill · 12-28-2007, 10:08 AM

My 68 came with a Rockwell and 2piece, but I made it one piece when I swapped in the SM465.

**special-K** · 12-29-2007, 03:15 AM

Is it a Rockwell thing???

**Yukon Jack** · 12-29-2007, 06:17 AM

Quote:

Originally Posted by special-K

Is it a Rockwell thing???

If so, I will have to make up one of those windshield decal things for my 69:

"It's a Rockwell Thing, You Wouldn't Understand!"

1969K10 · 12-29-2007, 06:26 AM

Just occured to me that the g/f's 68C10 long bed w/ 3 on the tree has a 2-piece d/s. (Just to help confuse). And it's supposed to be a stock truck.

68,69 K20 · 12-29-2007, 07:01 AM

Quote:

Originally Posted by special-K

Is it a Rockwell thing???

If I may add to the confusion, My 68K20 has a Rockwell and a 2 piece Drive shaft, while my 69K20 has a Rockwell and a 1 piece driveshaft. They are both longbeds, the 68 is a V8 while the 69 is a 6cyl, not sure if this matters or not.

**Ridgeback** · 12-29-2007, 05:09 PM

Bought my first truck new in 1969, K20, 350, 4speed, rockwell. It had a two piece drive shaft. Bought another 1969 used in 1970 to expand my snowplowing work, same drive train and it also was a two piece drive shaft.

**special-K** · 12-30-2007, 03:25 AM

I looked in the LMC catalog and the only carrier bearings they listed were 2wd.It ain`t that bible,that`s for sure.
I just thought this would be an interesting topic.We may never find an absolute answer,but curious minds will inquire,right?I think GM weened off of the 2pc as they transitioned into the New Process case.In`69,only Blazers had automatic trans,right?And they had the 205.

1969k10stepside · 12-30-2007, 04:23 AM

It has to be a rockwell thing but did the shortbeds have the 2 piece shaft too?I believe Jakes68GMC said his '68 K2500 had a one piece though.If that's the case then that just screws things up more.Tim,I've got a spid label here from an original 69 K20 and it had a turbo 350 tranny.I do not know about the rear driveshaft though.The t-case would have had to be a NP205.I need to ask some people with the shortbeds with the Rockwells if there driveshaft is 2 piece or not..We'll get this figured out!

**special-K** · 12-31-2007, 02:31 AM

I know of a truck with a NP205 and a 2pc.Has anyone seen a`73-up with a 2pc?I have,but I don`t know what`s what on this truck.It`s a`68 2wd body on a`73-up frame,has front springs the same length as 69-72s,2pc driveshaft/NP205/4spd,and 8-lug axles w/large hubs(blue knobs).
Were 73-75 or so leafs the same as 69-72s?I know they got longer at some point.

1969K10 · 01-02-2008, 03:03 AM

I looked at what was supposed to be a 69 (I think it was a 70) 3/4T 4X4 long bed with the 205 X-fer, and it was 1-piece DS, and it was freaking huge, compared to mine...

12-27-2007, 12:30 PM	#1
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	2pc. Driveshafts??? Where`s the rhyme or reason with these.Honestly,I thought all 4wds had one piece and this was a 2wd thing.The t-case shortens the length already and everything I`ve ever had was 1pc.But,I`ve recently seen some 2pc deals on both longbeds and Suburbans. __________________ "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 ~

12-28-2007, 02:41 AM	#2
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: 2pc. Driveshafts??? My guess, is that it helps keep the driveline up between the frame rails for as long as possible to prevent damage to it. but I'm guessing. Granted my truck is a frankenstein when I bought it, and has just gotten worse, but mine came with a 2 piece rear. __________________ 1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current 1969 K20 - V8, 465, 221, Eaton, D44 2012-current Nothin' but drums on all 4 corners! past horses in the stable 72 C10-short step (97-02), 68 C10-long fleet (06-12)

12-28-2007, 04:32 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 2pc. Driveshafts??? I`ve had mostly K/20s,SWB K/10s,and K/5s.They`ve all been 1pc.I`ve had two LWB K/10s,a`69 with 3spd and a`72 with TH350 and they had 1pc.I just don`t understand what determines when a 2pc gets installed.I only recently came to realize ant 4wds had 2pc. __________________ "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 ~

12-28-2007, 07:02 AM	#4
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Re: 2pc. Driveshafts??? My 69 K20 has a two piece driveshaft. It was originally a 3 on the tree/Rockwell. It is now an SM465/Rockwell. I've replaced the carrier bearing once. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

12-28-2007, 09:51 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 2pc. Driveshafts??? Thanks.I`m wondering if the`69 I had might have had a 2pc and I just didn`t know it.I didn`y do much with it.It was only about 10 years old and I didn`t have it trhat long.I sold it to get a K/20`71. __________________ "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 ~

12-28-2007, 10:03 AM	#6
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: 2pc. Driveshafts??? My 69 (Back when it was a K10 and didn't have 3/4 ton running gear) had a 2 piece setup..I've seen some older ones (67-68s) that had a one piece and then all the ones with the NP205 have had the one piece that I've seen...I don't know why some did and some didn't.. Last edited by 1969k10stepside; 12-28-2007 at 10:06 AM.

12-28-2007, 10:08 AM	#7
68K20 x Drill Registered User Join Date: Apr 2007 Location: Freedom CA Posts: 488	Re: 2pc. Driveshafts??? My 68 came with a Rockwell and 2piece, but I made it one piece when I swapped in the SM465. __________________ 68 Chevrolet k20 Longbed 350 SM465/205, Dana 44, 14bolt, Power steering, Power Disk Brakes, 35" BFGs. 84 Chevrolet Suburban K20 6.2 Banks turbo TH400/NP208 Now with G80 68 GMC C20 Parts? Truck And a few cars

12-29-2007, 03:15 AM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 2pc. Driveshafts??? Is it a Rockwell thing??? __________________ "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 ~

12-29-2007, 06:26 AM	#10
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: 2pc. Driveshafts??? Just occured to me that the g/f's 68C10 long bed w/ 3 on the tree has a 2-piece d/s. (Just to help confuse). And it's supposed to be a stock truck. __________________ 1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current 1969 K20 - V8, 465, 221, Eaton, D44 2012-current Nothin' but drums on all 4 corners! past horses in the stable 72 C10-short step (97-02), 68 C10-long fleet (06-12) Last edited by 1969K10; 12-29-2007 at 06:33 AM.

12-29-2007, 05:09 PM	#12
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: 2pc. Driveshafts??? Bought my first truck new in 1969, K20, 350, 4speed, rockwell. It had a two piece drive shaft. Bought another 1969 used in 1970 to expand my snowplowing work, same drive train and it also was a two piece drive shaft.

12-30-2007, 03:25 AM	#13
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 2pc. Driveshafts??? I looked in the LMC catalog and the only carrier bearings they listed were 2wd.It ain`t that bible,that`s for sure. I just thought this would be an interesting topic.We may never find an absolute answer,but curious minds will inquire,right?I think GM weened off of the 2pc as they transitioned into the New Process case.In`69,only Blazers had automatic trans,right?And they had the 205. __________________ "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 ~

12-30-2007, 04:23 AM	#14
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: 2pc. Driveshafts??? It has to be a rockwell thing but did the shortbeds have the 2 piece shaft too?I believe Jakes68GMC said his '68 K2500 had a one piece though.If that's the case then that just screws things up more.Tim,I've got a spid label here from an original 69 K20 and it had a turbo 350 tranny.I do not know about the rear driveshaft though.The t-case would have had to be a NP205.I need to ask some people with the shortbeds with the Rockwells if there driveshaft is 2 piece or not..We'll get this figured out! Last edited by 1969k10stepside; 12-30-2007 at 04:28 AM.

12-31-2007, 02:31 AM	#15
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 2pc. Driveshafts??? I know of a truck with a NP205 and a 2pc.Has anyone seen a`73-up with a 2pc?I have,but I don`t know what`s what on this truck.It`s a`68 2wd body on a`73-up frame,has front springs the same length as 69-72s,2pc driveshaft/NP205/4spd,and 8-lug axles w/large hubs(blue knobs). Were 73-75 or so leafs the same as 69-72s?I know they got longer at some point. __________________ "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 ~

01-02-2008, 03:03 AM	#16
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: 2pc. Driveshafts??? I looked at what was supposed to be a 69 (I think it was a 70) 3/4T 4X4 long bed with the 205 X-fer, and it was 1-piece DS, and it was freaking huge, compared to mine... __________________ 1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current 1969 K20 - V8, 465, 221, Eaton, D44 2012-current Nothin' but drums on all 4 corners! past horses in the stable 72 C10-short step (97-02), 68 C10-long fleet (06-12)



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.