How is the ride with your moser 12 bolt? is it same as stock? do you need better shocks that stock?

My moser seems to ride a little rough. but i did install the BMR pan hard rod and control arms at the same time. but since the install im getting this knocking sound when i hit hard bumps and it vibrates at about 80 and up. the drive shaft was also balanced and got new U joints. and last week i replaced the wheel bearings and that helped a little.

Any one else expirencing a diffrent type of ride? thanks for any replys!!!

 

I did a lot of research about the Moser before I bought a 12 bolt and everyone agreed there was a certain amount of whine from the rearend. Instead of setting it up at Moser, I set it up locally and the whine is hardly noticeble except a little more on the decel. I am very happy with the Moser product !

 

yea mine wines a little but not that bad. it seems like the ride is harsher than before and the vibration at high speeds. dose anyone elses do that?

 

Did you check the driveshaft length? Several people have run into problems by not having the stock DS length shortened when using the Moser 12-bolt. If you've got the DS bottoming out in the tranny, might explain the knocking and vibration.

You also might want to look at the bolts at the top of the torque arm mount, and see if they are hitting the tunnel on heavy bumps.. another common problem.

 

aaaahhhhhh that sounds like 2 good places to look!!! thanks

how long should the drive shaft be??? moser said i didnt need to shorten it.

and if the bolts are hitting how do i fix that???

thanks again Injuneer

 

agree with injuneer about Moser hitting the tunnel housing. I had to reshape the tunnel a little bit to get mine to stop hitting at the housing.

 

Do a "search" on this forum... someone posted a "caution" about the Moser DS length problem a week or two ago. He destroyed his tranny because the shaft was too long. Moser had told him it didn't need to be any shorter, but they agreed later they "just said that" because no one ever told them there was a problem. I've been following "Moser vs. Strange" for a couple years, and have been warning people to CHECK THE DS LENGTH on the Moser install. Too many people have had to shorten them.'

You need at least 1/2" clear before the DS bottoms out against the tranny when you push it in from the "normal" location. That is for a bolt-on motor. Once you go to a power adder, you want at least 3/4" to 1" clear on the DS.

The TA bolts hitting the DS tunnel isn't unusual, and if you have an aftermarket TA, the mounting bolts for the rod ends to the rear brfacket are probably going to have to be reversed, so only the bolt heads are on the side that can hit. Did it with my Strange.

 

Injuneer, what are you measuring ?? The measuremnet from the tail shaft of the tranny to the edge of the driveshaft snout. The amount you can see between the two ?? You have me wondering now ?? Mike

 

So Fred which one is the better rear end in your opinion? And why?

 

i dont have a after market TA but the moser bolts to the TA diffrent. instead of useing 2 big long bolts they use 4 bolts that thread into the housing. so i really cant reverse it. lol

ill check the DS length this weekend. thanks for the help. if there is anything elses anyone things of please post!!!

 

Get under the car, with the car supported on the axle tubes or the tires, to load the suspension to normal ride height. Unbolt the u-bolts from the rear u-joint. Measure how far you can move the DS forward from its "normal" location in the u-joint, until it "bottoms out" in the tranny tailshaft housing. That's all the clearance you have, before the splined tube on the front yoke hits the tranny and breaks/bends something.

Might seem like a lot, but when you launch, the LCA's are going to compress the bushings, and the axle will move forward relative to the body. The more torque you are putting to the rear wheels, the more its going to compress (discounting rod end LCA's). The "length" of the DS (or actually the insertion of the splined tube into the tranny) will also change as the body moves up and down over the rear axle assembly - you can also remeasure the clearance with the axle at full drop to see if it changes. And who knows what direction the motor is going to move when it torques. Gotta have some free play in the shaft or it is going to do damage.

 

I think we tend to like what we have, unless we've had problems with it. I've been running the Strange for 3-1/2 years with absolutely no problems. I'm amazed at the beating that thing took when my car was still an M6/Street Twin/ET Streets setup.

-completely "plug-and-play". Fully assembled, lubed, run-in

-no alterations to any other parts required. DS length is stock, LCA clips are same weight as stock, brake mounting plates already installed.

-no noise from my Strange. Setup was near perfect.

-proven to stand up to 800-950HP with no problems.

-no need for new sway bar mounts since axle tubes a stock diameter.

-stock like TA mount

The big downside to the Strange is the long wait for delivery. When I bought mine, it was promised in 30 days by T. Byrne Motorsports, and it arrived in 30 days. There was a problem with Strange failing to install the reluctor gear on my HD posi, and they bent over backwards to replace the complete carrier (the gear is machined into the carrier, not bolted on), at a shop of my choice, with absolutely no cost to me, and with a full guarantee on the shop's work.... I couldn't believe how apologetic they were for their error. Beyond that "problem", it is a totally care-free unit.

 

Stock TQ arm will hit the left Parking brake cable holder. If your car is lowered it is bad if stock not so bad at all.

The stiffer ride comes from the axle tubes not flexing like the stock ones did. I noticed it the moment I pulled the car out of the shop.

Good luck!

 

how do you reshape the tunnel??? with a big hammer lol

 

I am the one that posted the Moser 12 bolt warning. Basically the stock shaft shattered the output shaft of my transmission.

1. My DS was shortened just shy of an inch.

2. The clunking probably is not the DS but the sway bar hitting the TA cover. I am looking to find a larger sway bar but Sphon sells a sway bar spacer kit for the moser rearend. My still hits on larger bumps unless I drive the car like a low-rider "sucks!" but I will fix this once I find a better rear sway bar that is large enough to not hit the cover or buy the spacer kit.

3. I have moderate whine from my rear end. It also vibrates relatively bad over 85MPH. I am having my gears checked and/or reset by a local shop. Moser said any setup problems from them would be paid by them to my local shop to do the repair. I know plenty of posts that mention gears setup too tight from moser. Once reset correctly, the rear end whine is gone and vibrations are down. If your running 3.73 or taller gear, expect some vibrations at high speeds. That is a trade off, faster takeoff = lower top end speed.

I love my rearend but I am sure I will love it more once my gears are reset . It would of been nice to be warned of the sway bar and the DS issues on the front end. The DS problem cost me 2500 for a rebuilt tranny but it was an excuse to get a perf rebuild on it with hi perf parts in the tranny, pressure boost and a shift kit

Let us know what you find! Good luck and feel free to email me at vogel18@comcast.net if you want to talk about our experiences on this axle and trade information.