What gear is everyone running

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Not true.....Motive gears were originally from Italy. Sounds like they are now made offshore. Don't be surprised if your Richmond gear is made by Motive.

I was checking out Dr. Diff's web site and this is the description of the manufacturer. Motive Performance ( Richmond )
 
Brand of gear has nothing to do with gear noise. That's 100% on the installer. If gears whine, it's because they were installed wrong. End of story.
 
Not true.....Motive gears were originally from Italy. Sounds like they are now made offshore. Don't be surprised if your Richmond gear is made by Motive.

Motive gear acquired Richmond gear a few years ago. Some of the Richmond gears were manufactured in India. Now all Motive gears and Richmond gears are manufactured in Italy. I called Motive and talked to a tech and I asked him where their gears are manufactured and that's what he told me.
 
Brand of gear has nothing to do with gear noise. That's 100% on the installer. If gears whine, it's because they were installed wrong. End of story.
I have to disagree.
I just put a brand new Richmond 4.10 with all new bearings etc. Suregrip I run has .001 run out, set up pinion depth and back lash perfectly with depth gauge and dial indicator. They are noisy and the Richmond name is no longer stamped on the gear. Google it and you will see they were bought by US Standard or something.
 
Not true.....Motive gears were originally from Italy. Sounds like they are now made offshore. Don't be surprised if your Richmond gear is made by Motive.
National drivetrain sold them, I bought a 3.55 set for my 7 1/4 .... they broke a tooth on the ring gear. They said made in italy.
 
I have to disagree.
I just put a brand new Richmond 4.10 with all new bearings etc. Suregrip I run has .001 run out, set up pinion depth and back lash perfectly with depth gauge and dial indicator. They are noisy and the Richmond name is no longer stamped on the gear. Google it and you will see they were bought by US Standard or something.

Then your setting is wrong. The gear settings provided with the gears is only a guideline. You always go by the gear pattern left by marking compound.
 
Then your setting is wrong. The gear settings provided with the gears is only a guideline. You always go by the gear pattern left by marking compound.
I installed some gears outside under a truck based off of tech supports recommendation of whatever grouping of shims. Got it together, and brought it to a shop, it was right on. Never heard a noise from that set of gears. No, I'm not an expert, more of a hack that got lucky?
 
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And just to add my experience, once they have been run and found to whine, I have never had much success getting rid of the whine. And I have built hundreds and hundreds of rears. From cars and pick-ups, to graintrucks, and a few hiway tractors and other stuff.
Rusty is right, the pattern don't lie.
And Md is also right, some gears just won't pattern right
 
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Then your setting is wrong. The gear settings provided with the gears is only a guideline. You always go by the gear pattern left by marking compound.
It's the gear. I'm fully aware the specs get you in the ball park and you tweak the pattern afterward. The new products are not the same quality as the old gears is my point. A good name was bought out by a huge company to make shareholders more money IMO. I got 15 quiet running years out of the old Richmond 3.91 until it broke a ring gear tooth off launching at the track. I will try another brand after this set fails or wears out. I can't hear the whine at the track with the headers uncapped.
I'll also add that I went thru the whole jack stand run, heat cycling, and easy driving before beating on the gear at the track that is required in the Richmond instructions.
 
Then your setting is wrong. The gear settings provided with the gears is only a guideline. You always go by the gear pattern left by marking compound.
I guess there could be a flawed set. but for anyone to say Richmond gears whine is wrong.
We have ran them spooled, sure gripped, welded lol with 14 " slicks and never had a gear failure.
I only listed a handful of ratios we used.
 
I guess there could be a flawed set. but for anyone to say Richmond gears whine is wrong.
We have ran them spooled, sure gripped, welded lol with 14 " slicks and never had a gear failure.
I only listed a handful of ratios we used.

Sure, I'll go along with a defective set. Maybe more than one, like a bad run, because it just happens sometimes. But to say one entire brand is notorious for making noise is erroneous at best.
 
4.10 gear 28" Mickeys 360 727 3400 converter.
Nice gear on the street....surface street...sure does get to the limit in a hurry:steering:

I have a non lock up 518 thats just been sitting...whats that, 29% od?
it'd be like changing to a 2.90 rear in od...hmmm...:rolleyes:
 
Hey Jimacuda! Does your 4.10 gear do ok on on the highway? Or just not tolerable? I am going with 3.91's in my dart sport 360 292/508 cam abd 3400-3600 9.5" FTI converter. Just trying to get an idea.
 
Hey Jimacuda! Does your 4.10 gear do ok on on the highway? Or just not tolerable? I am going with 3.91's in my dart sport 360 292/508 cam abd 3400-3600 9.5" FTI converter. Just trying to get an idea.

Quickdart360, tried to send you a PM but your inbox is full
 
Hey Jimacuda! Does your 4.10 gear do ok on on the highway? Or just not tolerable? I am going with 3.91's in my dart sport 360 292/508 cam abd 3400-3600 9.5" FTI converter. Just trying to get an idea.

Rev's a bit high for long hauls at 65-75 but its sweet to be at merge speed in a blink.
 
Sounds good! Currently have 3.55s but not really my liking. The are ok but I think will not do so good with the bigger cam. Know have the 280/474 cam but will be going to the 392 cam. Also will try the holley strip dominator single plane. I think I can get away with this intake because of the 3.91's higher stall.
 
Sounds good! Currently have 3.55s but not really my liking. The are ok but I think will not do so good with the bigger cam. Know have the 280/474 cam but will be going to the 392 cam. Also will try the holley strip dominator single plane. I think I can get away with this intake because of the 3.91's higher stall.

with the right convertor and tuned properly the 3.55's will work fine.
 
To bad already swapped in 3.91's rear. But I hope I can live with rpm increase.

3.91's, so long as you don't run a roller skate tire isn't too bad. It's definitely livable with a 28" or taller tire. Under that and it may grow old for you depending on the driving you do. I like to be 2500 or lower while cruising. 3000 tops. Some people don't mind cruising above 3000 but in most instances I've found it to get old pretty quick.
 
Yes running a 28" tire. Was considering a 27" . Which is the 295/50/15. I will not do much highway if possible. But want to have the snap on take off. In the not so near future will want to go with a gear vendor.
 
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