1971 K10 U-bolt Issues (Rusty, Not So Trusty)

[WyldeMoose]

Originally Posted by 1970cstblazer

You are looking for orig. GM pt. # 3824491. Later changed to 3762845 and 3996593. Applications include 1969-72 Blazer, 1971-72 K10/K20 exc. HD rear springs.




Per 5/81 Parts book:


GR. 7.518 PLATE, REAR SPRING U BOLT ANCHOR
QTY 2 3762845

65-66 K10-Kg10
69-71 K10-K910-K15
71 K20-K25 W/STD
SPRINGS .... /SUP 3824491

Yes! That's exactly it. I took the broken one off and remeasured. It is definitely only 3" and not the 3.250" I thought. I looked up the parts numbers you offered and it says they are for 73-87 Square Body trucks with 3.5" axles. They look quite similar, but I'm just worried about the size they're made for. Either way, thank you for the response!