I just bought a moser 12 bolt for my 91 z28 with drum brakes. I've looked for any articles on what I need to swap this rear into my car. I have not found any. I need to know whether my drum brakes are gonna be able to transfer over. I also need to know what problems or what modifications I have to do to get this rear to work in my car. this is a moser 12 bolt for the third gen. f-body's with the torque arm mount. I understand something about the yoke has to be changed? is it the one on the rear or the driveshaft?

 

i'd call moser fopr the basics, but it should be a straight forward swap. you'll need to have a u joint fit the pinion yoke and the DS yoke, easiest thing to do is get a u joint to fit the pinion side and then have a new yoke welded to your drive shaft

 

The factory drum brakes on your car won't fit the moser rearend, atleast if you have the 9inch ends on it like I do. I have the non-clip version which has ford 9inch ends welded on it. Moser sells a brake kit that works perfect, they are actually ford torino brakes. You may have to bend your brake lines a little get everything lined up correctly. Everything else is pretty much a direct bolt in. You may have to get bigger brackets to hold the rear sway bar on because the axles are thicker. The torque arm bolts right up.

 

is that for the ford 9" or the chevy 12 bolt?

 

Its a 12 bolt with Ford 9inch ends. Moser has pretty good tech support, you can call them at 219-726-6689

 

Hmmmm....A 91 Z28 with drum brakes. Wierd considering mine is a 92 Z28 with all around disks.
You need to swap out your U-Joint and go with a 1350 spicer. Also there are four screws for the torque arm (2 bottom, 2 on top). Being the dumbass I was at the time I drilled thru the screw mounts and made the screw go completely thru. [B]Well for the TQ arm make sure you find the screws that fit it.[B]

And one more note, Moser told me to fill the rear with oil from the T/A cover. Dont listen to them. That fugked me up and made oil leak from the axel bearings on one side. [B]Fill the rear from the allen fitting on the side.[B]

I hope this helps some.