73-77 Blazer Front Drive Shaft Compatability

[cysko9]

Now that I've sorted out which tailgates fit my 73 blazer. I need some help with the front driveshaft.

The LMC catalog shows 2 different front driveshafts (one with a u-joint tip and the other with a flange). Supposedly, the 73 requires the u-joint version. I've hard a heck of a time finding a used one but don't want to shell out $320 for a new one. There's a ton of the flanged shafts around so is it possible to just pop off the flange and mount it without it?

The blazer is bone stock as best I can tell and has full time 4x4.

Here's the page from the LMC catalog:

http://www.lmctruck.com/icatalog/csb/full.aspx?Page=153

[bmchevy1979]

No they are different lengths but if you can't find them without it get the flange for your transfer case.

[v30crewcab]

a jeep xj front driveshaft is the same style, but don't know if the length is compatable or not. those take 1310 joints, and the big round style is 1330.

[cysko9]

What do I need to search for to convert the transfer case to the flange style output?

[bmchevy1979]

You just need the flange off the output it's just replaces the old yoke then you need a driveline that matches.I can't say whether the xj part will interchange or not but the early 70s squarebody 1/2 tons use a 1310 u-joint it would be a matter of length and if the cv joint will bolt up the same

[v30crewcab]

just saw a 77 in the yard today with a 203, and the flange. just need to find a setup off one of those and you're good.

[El Dorado Jim]

some front output shafts are fine splined and some are coarse, like 10 spline or around there, not sure, , you will need to pull yours off and see what splines you have, then find a flanged one with the same splines.I have had to do this.