4.10 install
Thread Starter
Staging Lane
Joined: Nov 2015
Posts: 50
Likes: 0
4.10 install Ok so I went and bought a motive 4.10 set up for my ws6. Plan to install next week. Can somebody give me all the number specs. Like backlash, torque specs. And any tips are appreciated. It is the stock 10 bolt
Nothing really difficult about it once you have done them a couple times and have the right tools. Make sure you have a dial indicator for back lash, a tq wrench for bolts and a small beam style inch pounds tq wrench for setting pinion pre load. A good impact will make crushing the crush sleeve/setting pinion pre load much easier.
I don't know if an impact will touch that crush sleeve as I had to put a 3/4 inch ratchet with a pipe when I popped 4.56's in my 03 Silverado behind a Tremec Magnum. Though sleeve for a 8.5 housing is prolly larger.
Something I found that worked good for me was installing the pinion
( With the Old nut ) , without the crush sleeve and setting the proper pre load until I seen a good tooth contact pattern. After I obtained a good pattern, I installed the sleeve.
Spec recommendations should be in the box.
If you've never done it before, trail and error. You can start with your original shim and go from there. Lots a good info online explaining tooth contact pattern + pics
Tools that are a big help are a pinion depth gauge ( omits lots of trial installs ), housing spreader ( Much easier pulling carrier and installing shims! ), and dial indicator for back lash.
Something I found that worked good for me was installing the pinion
( With the Old nut ) , without the crush sleeve and setting the proper pre load until I seen a good tooth contact pattern. After I obtained a good pattern, I installed the sleeve.
Spec recommendations should be in the box.
If you've never done it before, trail and error. You can start with your original shim and go from there. Lots a good info online explaining tooth contact pattern + pics
Tools that are a big help are a pinion depth gauge ( omits lots of trial installs ), housing spreader ( Much easier pulling carrier and installing shims! ), and dial indicator for back lash.
Trending Topics
The old spacer from the pinion should get you close, crush sleeves are cheap and I usually have a couple extras just in case. A GOOD impact will have no problems with the crush sleeves, my ingersol rand does them with ease. I have an 8.5" in my car and the crush sleeve was no more difficult then in a 7.5"
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
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
I would get a good pattern with around 6/7 backlash. Then set your pinion preload to 25ish and total preload including carrier to 40/45 and you're good. Thing will be as solid as a rock.
One of those will work for pinion pre load.
Registered User
Joined: Jan 2016
Posts: 4
Likes: 0
nothing really difficult about it once you have done them a couple times and have the right tools. Make sure you have a dial indicator for back lash, a tq wrench for bolts and a small beam style inch pounds tq wrench for setting pinion pre load. A good impact will make crushing the crush sleeve/setting pinion pre load much easier.
Pinion depth is most important.
