correct gear tooth pattern ? 3.73's
correct gear tooth pattern ? 3.73's It looks okay to me but I dont mess with these everyday. what do you guys think ? this is for a 94 T/A 2 series with now 3.73 gears (richmond)
DRIVE
COAST
DRIVE
COAST
I am not sure why your drive pattern is so low on the ring gear. What is the backlash at right now? Did you keep light pressure or drag on the ring gear when making the pattern I usually take a rag and hold against the edge of the gear while turning the pinion yoke makes the pattern a little more detailed, then I make about 5 revolutions in each direction. Here is a pic of the last 4.10 I setup has alot longer pattern on the ring gear couldn't find a pic of the coast side. Hope it helps a bit.
The backlash is at .009 Richmond calls for .010, pinion depth (checking distance) mine is at 2.348, while it calls for 2.314. So, everything seems in spec.
OH, and yes it did add some drag. maybe ill try and do it again..
OH, and yes it did add some drag. maybe ill try and do it again..
you guys are good, measure twice cut once. Some how I messed up my measurement, so I when back and remeasured it, I got a completely different number for pinion depth 2.284 which means the pinion is too deep and I have to take .033 off the shim. 
oh, well live and learn I guess.
thanks ls1tech gurus
oh, well live and learn I guess.thanks ls1tech gurus
Joined: Mar 2005
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From: 32639 Groesbeck HWY. Fraser MI 48026
Looks to be just a hair deep, maybe .002-.003 thousands and keep the .009 backlash, you close. I have never counted on pinion depth for setting up aftermarket gears. Always relied on contact pattern.
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You can try to make it better. I did a richmond 4.10 two years ago and after messing with pinion depth I came out with the same depth as you and the same contact pattern. I think you have it. I drove 5K on mine so far and my buddies say is one of the quietest richmond gear setups they have heard. Just my 2 cents
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okay I guess, the adjustment didnt really move the drive pattern too much if at all. the coast side looks better though. Looking on richmonds site it looks like it is supposed to be a little toe heavy. Soon as i get out of work ill post some pics
Drive side just a tad toe heavy makes for a stronger setup under hard launch because the pinion tooth will try to climp the ring tooth. This setup ensures the most tooth contact or coverage under launch. However sometimes you will get a tad bit of whine under this setup.
heres the pics, I think i'm going to take away 1 thousandths shim away from the driver side of the carrier and add it on the other side and that should move the ring gear away no? it looks a bit root heavy.
DRIVE
COAST
disregard the middle tooth, i repositioning my hand turning the pinion at that point
DRIVE
COAST
disregard the middle tooth, i repositioning my hand turning the pinion at that point
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Joined: Jul 2007
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From: Central,NJ
Yes that would move the ring gear away from the pinion. When you say root heavy I assume you mean toe heavy? From what I see your pinion depth is perfect, root to face. It can use a little more backlash to move the pattern towards the heel, but you need to check the measurement first. If your already at max. backlash then your done. Let us know where the backlash is set that produced that pattern.
Last edited by Kevin97ss; Dec 9, 2008 at 11:10 PM. Reason: drunkin idiot
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Joined: Jul 2007
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From: Central,NJ
I think your golden. Richmond says .008-.012 on backlash but its not a "setting range", its allowance for carrier runout. Meaning .008 min and up to .012 at its furthest spot. The pattern looks damn good and your BL is on the money. You've done well...now go and enjoy it
