Gear install..... fun fun fun
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
Gear install..... fun fun fun So i thought id be cool and install my 3.73's and a new diff, so i read up on that guide from fullsizechevy.com got familiar with it and have the guide next to me through the install.... it kinda goes smoothly, but the parts he says will be hard as hell(removing bearing from pinion) are easy as cake, and the simple tasks seems to be near impossible!
This thread is for to see if anyone else experiences this their first time.... lol
I am looking for small hints to help things go smoothly.... I am putting it all back together... the fun stuff
This thread is for to see if anyone else experiences this their first time.... lol
I am looking for small hints to help things go smoothly.... I am putting it all back together... the fun stuff
Use a solid spacer, or start your crush sleeve in a vise.
Measure your old pinion head(from the bearing surface to the end of the head), and your new pinion, and then adjust the old shim accordingly- if the new pinion is bigger, remove shim- if it is smaller, add shim.
Or just try the new gear with your old shim, you should be very close.
Check your backlash in 3-4 places, and also the same with your pattern.
If you let me know where you are having problems I may be abe to help more.
Measure your old pinion head(from the bearing surface to the end of the head), and your new pinion, and then adjust the old shim accordingly- if the new pinion is bigger, remove shim- if it is smaller, add shim.
Or just try the new gear with your old shim, you should be very close.
Check your backlash in 3-4 places, and also the same with your pattern.
If you let me know where you are having problems I may be abe to help more.
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
Definitely not fun doing gears on a lowered camaro in my garage, but ia m taking it slow,not rushing anything, all that is left is to get the backlash and close it all up... hopefully this will not kill me...lol Ill let you know hoe it goes... hopefully it willbe done tonight!
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
So, i am trying to figure backlash, but the orig shims are too big... the carrier willnot turn once it get in.... and it takes alot toget the carrier in, so should i go down a couple hundredths on shim size? The orig shims were .234" and .239" if that helps
Originally Posted by LT1-Z28
So, i am trying to figure backlash, but the orig shims are too big... the carrier willnot turn once it get in.... and it takes alot toget the carrier in, so should i go down a couple hundredths on shim size? The orig shims were .234" and .239" if that helps
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
Well, i got the shims sized up right, but when i put it all in, i still hear clanking, even when i move the ring gear to the left as far as i can, and when i tighten down the bearing caps, the same carrier lockup condition occurs... this sucks
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
No offense meant. I'm really not trying to put you down, but you are in over your head. Please stop and get some help.
When I set up a 10 bolt, since I don't have a lift, I take the whole rear end out. That takes about an hour. You really have to have the gauges to measure pinion depth and backlash. I use setup bearings, dial indicator, press and a couple of jigs I've made to make it all easier. Then, I look at the pattern. If it isn't right, I make adjustments.
If you don't do this right, it will make a lot of noise and not last long.
Good luck.
When I set up a 10 bolt, since I don't have a lift, I take the whole rear end out. That takes about an hour. You really have to have the gauges to measure pinion depth and backlash. I use setup bearings, dial indicator, press and a couple of jigs I've made to make it all easier. Then, I look at the pattern. If it isn't right, I make adjustments.
If you don't do this right, it will make a lot of noise and not last long.
Good luck.
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
Originally Posted by Houston
I'm really not trying to put you down, but you are in over your head. Please stop and get some help.
When I set up a 10 bolt, since I don't have a lift, I take the whole rear end out. That takes about an hour. You really have to have the gauges to measure pinion depth and backlash. I use setup bearings, dial indicator, press and a couple of jigs I've made to make it all easier. Then, I look at the pattern. If it isn't right, I make adjustments.
If you don't do this right, it will make a lot of noise and not last long.
Good luck.
When I set up a 10 bolt, since I don't have a lift, I take the whole rear end out. That takes about an hour. You really have to have the gauges to measure pinion depth and backlash. I use setup bearings, dial indicator, press and a couple of jigs I've made to make it all easier. Then, I look at the pattern. If it isn't right, I make adjustments.
If you don't do this right, it will make a lot of noise and not last long.
Good luck.
Oh, i am definitely in over my head, but i figured it out.... i botched putting in the rear pinion bearing race so the pinion gear was WAY too close to the ring gear causing the bind up... i fixed that put it together and slapped my dial gauge on and got 9 thousandths... on to painting and diggin myself even deeper into the hole
i worked on a differential in a class of mine, but i did not do any bearing replacements so the process was much simpler....
I really should have removed my entire rear end... that would have made life sooo much easier, that though did not even cross my mind...lol
Okay, did you mark the caps before you removed them and reinstal lhtem on the right side? That could be causing your bearing binding problem. Also check to make sure there are no imperfections in the bearings and races, or even in the housing bores. It is possible you damaged a bearing during install, especially if you did something like use a air hammer.
The cse should have slight resistance going in. You should have to tap it in with a rubber mallet or lightly with a hammer. Set your backlash with very little preload. When you get it right then just add equal amounts of shims to both sides to get your preload, and recheck your backlash. Shoot for .008" on a 7.6.
The cse should have slight resistance going in. You should have to tap it in with a rubber mallet or lightly with a hammer. Set your backlash with very little preload. When you get it right then just add equal amounts of shims to both sides to get your preload, and recheck your backlash. Shoot for .008" on a 7.6.
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
I figured out why my dumbass was binding... pinion bearing race not fully seated... had to use the old race to get it all the way inside... a novice mistake.... got the backlash and patter looking good and am just about finished with this hellatious install
thanks for all the help... hopefully my moronic self did not screw this up....lol
thanks for all the help... hopefully my moronic self did not screw this up....lol
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
The days were long and boring... but it is all together and i drove it for about 5-7 mins and heard no whine, but i did not get to a very high speed... only like 50ish since the speedo is bye bye.... wheni was adding lube, i added 4 quarts and the lsd additive, and then it looked like the pinion seal night not have sealed right onto the pinion, and there was a small leak, but after driving it there is no more leak.... that i can see at least.... i am going to be ignorant and hope that spinning the pinion helped seat that seal.... well that is most def the last gear install i EVER do!
thanks for the help
thanks for the help
Originally Posted by LT1-Z28
The days were long and boring... but it is all together and i drove it for about 5-7 mins and heard no whine, but i did not get to a very high speed... only like 50ish since the speedo is bye bye.... wheni was adding lube, i added 4 quarts and the lsd additive, and then it looked like the pinion seal night not have sealed right onto the pinion, and there was a small leak, but after driving it there is no more leak.... that i can see at least.... i am going to be ignorant and hope that spinning the pinion helped seat that seal.... well that is most def the last gear install i EVER do!
thanks for the help
thanks for the help
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
i also installed a new girdle, and i used the fill plug, and i was told to add until until the level was at the fill hole... i could not really tell how close i was to it, but i was under the impression 3 quarts would be enough... im confused, but i guess the good old 7.5" is a mystery to me
Four qts is too much! You should use the fill hole on the pumpkin, not on the new cover. That is way too much. Open the plug on the pumpkin and let it run out to that level. Even with an aftermarket girdle/cover it takes just under 2 qts.
I'm surprised you didn't have gear lub blowing out the vent - a lot of it blowing out!
I'm surprised you didn't have gear lub blowing out the vent - a lot of it blowing out!
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 93
Likes: 0
From: Colorado Springs, CO
SWEEEEETTTTAAAAAAHHHHH...... i have a kinda bad whine on decel and on a no-load condition.... it is not very loud on the no load, and i am thinking it is prolly my pinion depth.... and since that requires me to tear it all apart... im pulling my rear end so my punk *** is not under the car for another amount of endless hours lol.... i figure i can prolly repaint them and see if i need to add or take some shims out...
The 2 biggest causes of decel whine are too loose backlash or not enough pinion bearing pre-load. Check those things first. If you have a good pattern, then you can tighten up the backlash. Depending on the gears you can go as tight as .005", I would stay .006-.008".
Did you reuse the stock shim? Or measure the old and new pinion?
Did you reuse the stock shim? Or measure the old and new pinion?