I have two rear ends I need to get rid of. One is a GM 12 bolt, has 5 lug car bolt pattern, leaf spring mount, so guessing it came out of an older muscle car. Asking $200 for it. The other is an Eaton 3/4 ton eight lug rear end, pretty sure it came out of a mid 60's early 70's 3/4 ton pickup. $350 for this one.
Both turn freely. I will not ship them because they weigh a ton, but I will deliver them within reason. (about 100 miles from either McPherson KS, or Manhattan KS)

 

FWI the truck's also had a 5 lug 12 bolt. Measure the axle to axle length. I believe the car ones were around or just under 60 inches. I believe A truck unit will be around 64 inches.

What type of 3/4 ton rear end are you trying to sell??? 12 bolt or 14 bolt?? Is it a semi float or a full floater???

Just trying to help you reach a better audience.

 

Measurement on the 12 bolt is about 55 inches from backing plate to backing plate, and about 43 inches from center to center on the spring mounts.

The 3/4 is an Eaton unit, I don't know much about them. Here's a picture of it for reference.

 

Eaton HO72...67 to 72 Eaton HO72 rear axles were used in 3/4 and 1 ton P/U's. It has a 11.5 inch gear and is basically bullet proof. The only draw back is that only locker option is a detroit and there is only two ratios for it, a 4.57 (yes 4.57) and a 5.14 (yep 5.14). It has a full stradle mounted pinion and a adjustable thrush pad to limit ring gear deflection under severe loads too. They replaced it with the cheaper to build 14 bolt 10.5 in 73 which while itself it is a very stout axle, tough *** rear for a crawler

 

^this. Thank you.