Two piece driveshaft

[turbotank]

Hey,I just bought a donor for the axle on my suburban.And it had a two piece axle with a carrier bearing in the middle.I didn't know that they did that sort of thing with these size trucks. Anyone seen something like this? Its on a 85 C20. I believe it was a camper special.Will this cause any problems with swapping the 14 bolt to my suburban?

[old Rusty C10]

i had a two piece driveshaft on my truck which had a th400 transmission in it.. the ones that had a th350 didnt have it... ive never had a truck with the 700R4 so i have no clue about that... the funny thing was the one with the 400 had a six banger in it

[boatpuller]

My 79 c10 swb has a 2 piece.Over time iv'e seen other shortbeds that had them also,while the majority didn't.I have a freind who has been a mechanic/shop owner and chevy lover for year's,he say's there's no pattern that he could figure out.Some do,some don't.

[Justins76]

I have a 76 long bed with a th350 and its a 2 peice.

[6772fan]

79 short bed with one piece and 79 long bed with 2 piece. Both TH 350's.

[Square84]

82 3/4ton with 305/th350 2 peice 84 1/2ton 305/th350 1 piece 90 suburban 1/2ton 350/700r4 2 peice so i think its whatever they had sittin there when it rolled off the line.

[turbotank]

But the u-joint will still be the same on the axle as a single driveshaft?

[old Rusty C10]

that one you could prolly answer by checking the part numbers on an online auto parts store

[D13]

The 2 piece was commonly used on LWB trucks or where the axle would see a lot of articulation. My l6 3ott 3/4 ton has one, my 1/2 tons do not.

[turbotank]

That would make sense,but it is a short wheelbase,thats why I thought it was odd.oh well.anyone need anything?

[Pyrotechnic]

Light duty half tons got one piece, heavy duty half tons got two piece, no matter what wheelbase or transmission.

[boatpuller]

Originally Posted by Pyrotechnic

Light duty half tons got one piece, heavy duty half tons got two piece, no matter what wheelbase or transmission.

did you read that or did someone tell you? iv'e been researching for a answer on this off and on for a long time.and i'm not disputing your information,because it make's more sense then anything else iv'e heard or read.but,it doesn't apply to my truck my vin decode's to regular half ton not a heavy,and it has a 2 piece drive shaft.i owned a 77 longbed with a 2 piece that was also a standard half.go figure.

[Captkaos]

I don't know where Pyrotechnic got it, but that is an accurate statement.

[Square84]

my 84 lwb has 305/th350 it is heavy half has extra leafs and heavy duty front springs it also has the bigger brakes front and back. i bought it from original owner only has one peice shaft and there is no crossmember for carrier bearing.

[boatpuller]

Originally Posted by Captkaos

I don't know where Pyrotechnic got it, but that is an accurate statement.

Dang it chris i figured if anybody knew it would be you.
not trying to ruffle your feather's.but that isn't an "accurate statement".between square 84 and myself.3 example's were given that don't jive with the statement (but i wished they did).on my 79 it was a diesel from the factory and decode's as a regular half.my 77 was untouched as was square84's.I'm thinkin the mystery lives on.

[Captkaos]

I don't know about diesels, but every HD 1/2T I have ever seen had 2 piece. (short beds). I wouldn't consider a diesel a HD though, but... Just speaking of experience. I don't have documentation to back it up. KIILEW would probably know.

[turbotank]

the one I've got is a 3/4 ton that came with a 454.

[78 Chevyrado]

My 78 3/4 ton 350/400 has a 2 piece.

[project 67 sub]

my 73 1/2 ton longbed i had had a 350/350 with a one piece