[1970-Cloned]

I am setting up my 12 bolt rear end. I just got done setting the pinion depth. I have the T&D Pinion depth tool. The Checking distance or pinion depth scribed on my (Richmond Brand) pinion gear is 2.914. I got the depth set at 2.916. I think that is close enough but I am figuring the pattern will tell for sure. I am double checking since this is my first rear end setup.

Thanks

Ben

 

[tlowe]

i never use the pinion depth setting tool.
the pattern is the only sure fire way of setting up properly. snap some digitals when you are ready and i will help as best i can.
do not put the crush sleeve on yet! do not use the new pinion nut either. tom

 

[mn65bis]

I think you did a great job. Double check the pattern and you should be good to go.
Dave

 

[1970-Cloned]

I can't post pictures since I am not a member.

I posted them on my website.

Here is the link

http://www.skybeamsearchlight.com/12bolt/


There are four pictures, 2 on one side of the ring gear and 2 on the other side of the ring gear. Looks to me like the pinion is too deep into the ring gear and needs shims taken out. This kind of irritates me because what is the point of the depth reading that richmond provides?

Also I did not use a crush sleeve and used the new pinion nut but I have two new extra ones so I should be good to go. Also how do you get the correct preload on the pinion nut?



Thank you

Ben

 

[mn65bis]

How thick was the shim? You use an air impact gun to tighten the pinion nut until you feel the pinion begin to spin a little stiffer. Then you use an inch pound tourque wrench to determine how tight the bearing is getting.

 

[tlowe]

oil all the bearings. tighten the nut until the pinion has friction to turn 10-20 in lbs. the carrier should also have preload on its bearings. apply oil to ring gear and the put marking compound on 3 teeth , both sides. turn ring gear using wrench both ways 2 turns.

your pics are too hard to see. i have dsl and it takes forever to see them. put them in a photo blog please. tom

 

[1970-Cloned]

oil all the bearings. tighten the nut until the pinion has friction to turn 10-20 in lbs. the carrier should also have preload on its bearings. apply oil to ring gear and the put marking compound on 3 teeth , both sides. turn ring gear using wrench both ways 2 turns.

your pics are too hard to see. i have dsl and it takes forever to see them. put them in a photo blog please. tom

What is the best way to make sure you have enough preload on the carrier bearings? I posted on this topic before and several people said to put enough shims so that you can not put in more and enough so that you can not pull the carrier out by hand.

Is this correct? I am posting the pictures on a blog page.

 

[Brian_d]

you should have enough shims preloading the carrier bearing so that it takes a good jerk to pill the carrier out of the housing.

 

[1970-Cloned]

What is the best way to make sure you have enough preload on the carrier bearings? I posted on this topic before and several people said to put enough shims so that you can not put in more and enough so that you can not pull the carrier out by hand.

Is this correct? I am posting the pictures on a blog page.

http://img222.imageshack.us/my.php?image=img0556nt8.jpg

http://img222.imageshack.us/my.php?image=img0557qi0.jpg

http://img223.imageshack.us/my.php?image=img0558mw2.jpg

Here are the pictures. See if these work.

 

[tlowe]

ben, i also setup the carrier 1st with about .245 thick shims on each side to start. with no pinion in the housing. the carrier will not just slide in and out. i use a dead blow plastic hammer to put it in. i ussually have to pop it with 2 bars.
the carrier when in should spin nice and not have tight spots, and will not continue spinning by itself , because of the load on bearings. the bearings will breakin when you start running it.
how much shim do you have on the pinion? get better pics of just the ring gear from both sides of teeth. those pics come up much faster. thanks. tom

 

[1970-Cloned]

ben, i also setup the carrier 1st with about .245 thick shims on each side to start. with no pinion in the housing. the carrier will not just slide in and out. i use a dead blow plastic hammer to put it in. i ussually have to pop it with 2 bars.
the carrier when in should spin nice and not have tight spots, and will not continue spinning by itself , because of the load on bearings. the bearings will breakin when you start running it.
how much shim do you have on the pinion? get better pics of just the ring gear from both sides of teeth. those pics come up much faster. thanks. tom

I retook the pictures

http://img128.imageshack.us/my.php?image=12bolt006nc3.jpg
http://img113.imageshack.us/my.php?image=12bolt007td8.jpg
http://img251.imageshack.us/my.php?image=12bolt008nm5.jpg

I am not sure how thick the shims I used are against the carrier. I was unable to get both factory shims into the housing. I used one factory shim and 3 shims (two large ones and one thin one) from the richmond set up kit. I think I am good with preload on the carrier, as I can't get more shims in between the carrier and the housing, it does not bind and I am unable to remove the carrier without a pry bar or such. (I know backlash has not been set yet)

I have three shims under the pinion. two thicker ones and one thin one. What ever amount that gave me the correct checking distance from Richmond scribed on the pinion. I will need to get a mic to measure the thickness.

Thanks

I think the pinion is too far into the ring gear. Let me know if you think that is correct.

I may need to clean the ring and pinion and start over with the marking compound.

 

[tlowe]

ben, what is your backlash set at? it looks to me that the pinion is too close to the ring gear. i would pull .003-.005 off of the pinion. it is easier to use super shims on the carrier bearing. they also have less of a tendancy to work their way out later.

when taking your pic's, only try and get 5-6 teeth in the pic. you know , a good close up.

your doing good, keep trying, it is worth it. richmonds are alittle harder to get a perfect pattern on. tom

 

[1970-Cloned]

ben, what is your backlash set at? it looks to me that the pinion is too close to the ring gear. i would pull .003-.005 off of the pinion. it is easier to use super shims on the carrier bearing. they also have less of a tendancy to work their way out later.

when taking your pic's, only try and get 5-6 teeth in the pic. you know , a good close up.

your doing good, keep trying, it is worth it. richmonds are alittle harder to get a perfect pattern on. tom

Where do I get super shims at?

 

[tlowe]

i get them in the kits i use and sell. i also have some not in the kits, that i could provide you. they are 2 half shells that are appr .2 thick and overlap each other. then to add thickness, thinner shims are put in between the 2 halves to thicken it. i could mail them to you. pm me if that is what you want. heck you have direct emailed me in the past also. tom

 

[1970-Cloned]

I just sent you an email. Thanks for all your help.

Ben