ok i've decided im going to put 4:11's in my 94Z M6. what will have to be done to fit these gears and will the carrier have to be changed and what kind of prices am i looking AT? Any information would be greatly appreciated.

Thanks guys.

 

sorry people put this in wrong section. not sure how to move it

 

if the 3.42's came stock on your car, then you have the 3 series carrier i believe. i got my gears for like 200 bucks from victory. get the 4.10 gears for the 3 series carrier (200 bucks) and the install kit from Richmond (bearings, gaskets, seals, everything 130 bucks).

 

Yes my car came stock with 3:42's. So i have the three series carrier? so the 4:11's will fit this carrier no problem then?

 

Not really worth much info but I have 4:11's and I really like them. One thing to look at though if you go to the track is what your trap speed and shift points will be depending on your mods with 4:11's depending on your mods in the 1/4 mile. They are really sreetable in my opinion with a 6 speed. Good luck.

 

so nobobdy on here has ever installed 4:11's before??

 

Installed my Motive 4.11s myself. Bought the gears, the install kit, diff cover, & gear oil. Also had to buy a new carrier after I found out that the screw that holds the pinion shaft (holds the internal gears in place) was snapped and I couldn't get it all out. Messed up the old carrier pretty good getting it out.

If you don't know anything about how to install a gearset I would recommend getting it done by someone experienced, whether you know a friend that will help for some $ or you take it to a shop. Pricing will vary, of course.

If you do want to go through with it on your own, me and other people on here can probably guide you through it, but it's a pretty involved process, and you can really screw things up if you don't get it right. You'll need some special tools as well, which will add to the cost- plus you'll probably have to take your pinion gear to a shop that has a press so you can have the bearing taken back off as you try to adjust the pinion depth- you could get lucky of course, best to try the same shim as was on the old one, but I wasn't so lucky. The bearing actually shifted on my test drive- the gear whine drowned the stereo out over 30 mph. Had to take it all apart again, fix the pinion depth, redo the backspacing, check the pattern. Basically, it can be a pita and if you don't think you're up to it it's best to let someone else deal with the hassle.

 

where did you get your Motive 4:11s?

 

http://www.neweraperformanceparts.co...57715&PageNo=4

 

I didn`t see any Motive 4:11`s Just 4:10`s. There is a difference betwixt the two. NewEra lists 4:11 SLP gears, but part of it`s description says 4:10s.
-Thanks!

 

I haven't installed 4.11's in a while and that was in a 12 bolt but I have seen post saying 4.11's are available for 10 bolts. I don't know.
I installed 3.73 Strange {US Gear} gears and a Zexel carrier in my 96 in 2004 and had excellent service till I sold that car in Jan.
If you do the install yourself, I'd suggest being very precise when setting the pinion depth according to the figure stamped {or engraved} on the face of the pinion gear. Obtaining the correct size carrier shims will be pretty quick based on backlash, and if the pinion depth was set correctly, the mesh pattern shown with marking compound will likely be dead center after the backlash is set correctly. I've had a couple of bad apples that took all day, but for the most part this holds true.


For setting the pinion depth without an all day press-on / press off ordeal:
If you can get the rear pinion bearing off without damaging it {which I doubt, I usually cannot - I usually buy an extra cheap rear pinion bearing}, use a die grinder or Dremmel with a rock to grind the center out of the inner race on that old bearing {or new cheap one}. This will allow the bearing to slide on-and-off the pinion shaft without the need for pressing. After installing the pinion gear and measuring the depth, this will allow you to remove the bearing quickly in order to change the shim thickness. Setting the depth usually takes at least 3 attempts, so this trick will save a ton of time spent on the press.
If your short on $ and need a rear pinion bearing that has already been bored out, I just happen to have one I'll send you for the shipping cost only. Let me know.

As GreenDemon suggested, if your not familiar with installing gearsets, then you may be better off to take it to a pro. If you want to learn, I'll try to help all I can.
The main tool you will need is a pinion depth setting guage {preferably a tool designed for a 10 bolt GM assembly although a universal type will work and will be cheaper}{My GM 10 bolt guage was $521}.
Have fun!!!