Drag Racing Tech - Can my SPOHN tq arm fit my 12 bolt

It used to be on my 10 bolt and I have no idea which style it is. All I know is that it fit my 10 bolt and is chassis mounted. But its a little hard to fit over my 12 bolt to get the bolt holes in. Im thinking about shaving a little off the tq arm end to make it fit. Should I do this or not? How do I know which I have? thanks and lmk asap please

What I can tell you is with my BMR TQ arm and Moser 12 bolt. We had to cut and shave the brackets that connects to the diff. The casting does not allow the TQ arm to sit properly in and was sticking out to the driverside. We cut enough meterial off which eliminated the 1st set of holes and brought it in flush. I do not like that there is less meterial but I have to deal with it.

I haven't broken it yet and I pick up the front wheels on a heavy car.

What you need to do is test fit it 1st and see if you will need to cut. From what I heard, other 12 bolt castings do not have the same issue as Moser used a Older casting for their units.

Yes it will fit, I had one on my car, put it on with the stock 10 bolt, then put a 12 bolt in the car and it bolted right up.

like others have said, it may take a bit of minor massaging due to the casting but it will work. the ones that are different are on the 9". the torque arm mount is moved out a bit on the 9". thats why some torque arms have 2 sets of mounting holes. the inside is for the 9" and the outside is for the 10 and 12 bolt. hope this helps.

Thanks guys, I will make it work.

Also why do I always see lots of people use the 1st set of holes to mount tq arms to even stock 10 bolts? Why do people do that? Even on my car the 1st set of holes is where its at and If I moved them inward to the second set of holes it would scrape the shit out of driveshaft and/or not fit?