When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Another question my 72 has 2.5" will the 3" fit alright, and the say 13.5" center to center, does that mean between the center of u-joint caps?, because it seems like mine are 13.75".
hey, i have a set of half shafts with new u-joints and the flanges for sale..... if interested i can send pics..i'm waiting on one guy but haven't heard back yet...i'm located in river rouge so i could swing them by... they need to be cleaned up a bit but are great..
I bought a pair from them...$125 plus shipping.
They are brand new and complete with Heavy duty u-joints and flange.
Balanced and 3 inch tubes.
I haven't put them in yet cause the car is STILL AT THE PAINTERS.
BUT, THE AT LEAST LOOK GREAT.
I'm beginning to wonder..... when I took my rear apart I found that the yokes hit the differential and "machined" the differential.... I wonder if my half shafts are 1/4" too long... I mean if there are different length shafts (13.5" and 13.75") then it's possible somebody installed the wrong shafts on my vette....hmmm, I'l take some measurements tomorrow after breakfast....
you are making me worry about mine now.
"That guy" said they were a perfect match when I ordered them.
wish they and the car were here so I could check.
63-74 2 1/2 shafts and the 75-79 3" shafts are the same length and use the same u-joints. 80-82 shafts are 1/2" shorter, half the weight, and the 80-81 auto use different u-joints.
Just measured mine: from center hole to center hole it's 13.75"
The side yokes are very close to the differential, almost make contact... I would be happier with 13.5" long half shafts to get 1/4" more clearance at the yokes.
Are you sure that the half shafts are normally 13.5" long ???
The side yokes are supposed to be that close. The ends of them sit against a pin inside the differential with a c clip to stop them from pulling out of the differential. You cant use a shorter half shaft to leave more clearance.
I got a reponse on the NCRS site, and someone said they were all
15 5/16" tip to tip from the outside of the forgings where the ujoints install. He also said that 3" dia were standard replacements after about ~80.
Mine were pretty close to that measurment, when I checked real quick.