gt1guy
Apparently a racist
Correct me if I'm wrong but as far as I know the "soft" gears are made from 8620 and the "hard" gears are from 9610. I've not heard of gears being made from anything else.
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School me on 9" ratios
- Thread starter Wfoyota
- Start date
AgitatedPancake
Frobot
9310 is an alloy I see related to "fancy" gearsets pretty frequently. But I've never known if the material difference alone is what makes "race" gears, or if they actually harden them to a lower rockwell hardness.
Same goes for 8620 honestly, do some maintain that standard alloy, but actually make them legitimately softer?
Same goes for 8620 honestly, do some maintain that standard alloy, but actually make them legitimately softer?
Here is from speedway on their cheap race stuff.
I have lots of friends that run these. They’ll have 5 or 6 different ones on hand in incremental ratios. Maybe the track calls for .10 different ratio to be in the sweet spot. Or they put the “big” motor in for the big money race. Speedway doesn’t put in writing that these are “soft” but these gears will be knife edged and howling like a banshee before the end of a summer.
www.speedwaymotors.com
motive cheapies that start at $100 bucks. But they are short lifed in their intended use.
www.speedwaymotors.com
I have lots of friends that run these. They’ll have 5 or 6 different ones on hand in incremental ratios. Maybe the track calls for .10 different ratio to be in the sweet spot. Or they put the “big” motor in for the big money race. Speedway doesn’t put in writing that these are “soft” but these gears will be knife edged and howling like a banshee before the end of a summer.
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TrailTamer
🤣🖕🏻
9310 is basically the "chromoly" axle shaft version for ring and pinions.
8620 shatters when shock loaded, while 9310 will not, kinda similar concept with 4340 or 300m axle shafts can twist much more before failure.
Gear Matters
Currie Enterprises is a premier manufacturer of high-performance direct replacement, and custom muscle car, and truck rearend axle assemblies.
TrailTamer
🤣🖕🏻
Gears with sliding tooth contacts like hypoid ring and pinions gears need very hard surface on teeth. Surface heat treating is what give them the hardness to resist wear. Otherwise they will have short service life.
particularly when a ring & pinion almost look like a worm gear (9" 7:1), make for a TON of sliding across tooth contact, pinion spinning at higher rpm than usual, generating a lot of heat. We need surface hardness for this if you want them to last long.
particularly when a ring & pinion almost look like a worm gear (9" 7:1), make for a TON of sliding across tooth contact, pinion spinning at higher rpm than usual, generating a lot of heat. We need surface hardness for this if you want them to last long.
So figured I'd share a bit of news I received from Yukon via email.
I was on their website browsing the ratios for their 9" 35 spline ring and pinions. BUT when I clicked on "technical specs" it was showing them listed as a 28 spline. And I know you could you could fit a 28 spline pinion in the 35 spline supports with the spacer Yukon makes. I was particularly interested in the 6.20 ratio that was also on backorder. So I sent them an email that stated...
"Hello, I was browsing through your selection of 35 spline 9" gear sets but when I click "technical specs" it lists the pinion as being 28 spline. Is this just a typo? I was specifically interested in the 6.20 ratio that's on backorder. Any idea on when this might be available if it is a 35 spline pinion? Thanks for your help.
Mark"
They're simple response an hour later was this...
"We are no longer offering 35 spline pinion 9” gears."
So anyone care to commit? Does this mean whatever's left out there is it OR are there really any 9" 35 spline R&P's for sale at all currently on shelf's?
If so I need to pick a ratio that is in stock and scoop them up asap, I'm too poor for the other options that exceed $1,000+.
I was on their website browsing the ratios for their 9" 35 spline ring and pinions. BUT when I clicked on "technical specs" it was showing them listed as a 28 spline. And I know you could you could fit a 28 spline pinion in the 35 spline supports with the spacer Yukon makes. I was particularly interested in the 6.20 ratio that was also on backorder. So I sent them an email that stated...
"Hello, I was browsing through your selection of 35 spline 9" gear sets but when I click "technical specs" it lists the pinion as being 28 spline. Is this just a typo? I was specifically interested in the 6.20 ratio that's on backorder. Any idea on when this might be available if it is a 35 spline pinion? Thanks for your help.
Mark"
They're simple response an hour later was this...
"We are no longer offering 35 spline pinion 9” gears."
So anyone care to commit? Does this mean whatever's left out there is it OR are there really any 9" 35 spline R&P's for sale at all currently on shelf's?
If so I need to pick a ratio that is in stock and scoop them up asap, I'm too poor for the other options that exceed $1,000+.
YotaAtieToo
Thick skull
I’d call ECGS and see what you can find there before you panic.
And then call Mark Williams. I seriously doubt MW 35 spline is going away. Seriously not much better company to deal with. And if you need axle shafts, get a quote from them while you’re on the phone. I bet you’d be shocked at their prices and lead time.
www.markwilliams.com
And then call Mark Williams. I seriously doubt MW 35 spline is going away. Seriously not much better company to deal with. And if you need axle shafts, get a quote from them while you’re on the phone. I bet you’d be shocked at their prices and lead time.
729-0001
Mark Williams Enterprises is an industry leading manufacturer of drag race axles, drive shafts, brakes, modular rears, rear end housings, thirdmembers, and chassis components.
YotaAtieToo
Thick skull
Messing around on Google, it seems that 35 spline pinion and 5.xx or lower are not common in the sub $500 range. The drag race guys aren't going to run 5.43 or 6.20 and circle track guys probably don't need 35sp pinions.
Going to do just that. I'll just have to pay to play with the big boys. I get a deep discount on yukon and 2 sets of yukons are cheaper than one set of Mark Williams without the discount and forget about adding any of the fancy MW options.
Exactly what I found. Nothing deeper than 4.11 under the $500 range that I could find anyway. Only 35 spline I found was Yukon that list them for $300-450 depending on ratio.
Sean
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^This....I’d call ECGS and see what you can find there before you panic.
And then call Mark Williams. I seriously doubt MW 35 spline is going away. Seriously not much better company to deal with. And if you need axle shafts, get a quote from them while you’re on the phone. I bet you’d be shocked at their prices and lead time.
729-0001
Mark Williams Enterprises is an industry leading manufacturer of drag race axles, drive shafts, brakes, modular rears, rear end housings, thirdmembers, and chassis components.
I don't know about MW, but ECGS has a LOT to offer that's not on the site. They priced me out some stuff a few weeks back with GearWorks parts and while it wasn't cheap, it wasn't nearly as expensive as list price over at GW's site.
Not sure if it's relevant or anyone cares but I asked Yukon why they're stopping making them. Response...
"35 spline pinion 9” gears are a soft pro gear
We got tired of people installing in street cars then complaining about longevity etc. so we dropped the entire line of pro gears ."
Going to follow the advice and move on. Call ECGS and go from there.
"35 spline pinion 9” gears are a soft pro gear
We got tired of people installing in street cars then complaining about longevity etc. so we dropped the entire line of pro gears ."
Going to follow the advice and move on. Call ECGS and go from there.
Rangerrod
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another vote for mark Williams.I’d call ECGS and see what you can find there before you panic.
And then call Mark Williams. I seriously doubt MW 35 spline is going away. Seriously not much better company to deal with. And if you need axle shafts, get a quote from them while you’re on the phone. I bet you’d be shocked at their prices and lead time.
729-0001
Mark Williams Enterprises is an industry leading manufacturer of drag race axles, drive shafts, brakes, modular rears, rear end housings, thirdmembers, and chassis components.
When people wonder why my social skills are lacking and I seem to have no patience for the poors. Remember that.
I put Yukon soft pro gears in a street car and they were noisy. Do you know what I did about it? Burn outs. You know what I didn’t do? Complain or ask for a refund. People think they should be able to pay $200 bucks for a part and have it last forever, then if it doesn’t that someone owes them money and an apology.
The only reason to put those gears in a street car is being a cheap ass. Being a cheap ass gets them cheap results. Since they’re cheap asses they want to make it somebody else’s fault. Lowest common denominator human behavior. Now we all lose a good option because of to many male Karen’s who can’t take responsibility for themselves. I know one of those Karen’s, is why that’s a little triggering to me.
So instead of recognizing and meeting a demand for big pinion streetable gears they go the opposite way and kill the product line. Makes sense.
Sean
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Sounds like the Yukon of late. They dropped their 9" Zip after "comp guys" kept blowing them up. Guess they couldn't engineer something better, so I guess that makes sense, but parts used in comp don't have a warranty anyway....so maybe there's more to that story.
94toytruck
Eastcoast crawler
I heard the D60 comp got axed too awhile back. I sent one back for warranty and they sent me a new one saying it was redesigned.
Sean
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Hmmm....any idea why yours failed? I have a brand new in box 35 spline D60 Comp Zip here for 4.56 and down that I was planning to sell to buy a 40 spline ARB.
94toytruck
Eastcoast crawler
Plastic cage inside broke.
TTRAxle&FAB
Yellow Skull
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Quick performance would be worth a call as well for 9in pro gears. Needed a 5.13 dana 60 pro gear last week for a pulling truck axle. They had a richmond in stock for $525 shipped vs $600-$620 everywhere else.
I ran 6:50 speedway gears in my rig for years, and no issues. But that rig is sold, and doing things in New Mexico now.
The Suzuki buggy?
YotaAtieToo
Thick skull
Just the basic ~$150 gears?
Yeah, my personal rig.
I think I was paying $120 off eBay, but with Biden bucks, they’ve probably gone up. Keep in mind, my old rig probably only had 100hp.
YotaAtieToo
Thick skull
Maybe, but I'd bet your use is harder on parts that most trail rigs, especially ring and pinions.
'84 Bronco II
El Chingón
Do you know which part of the state it went to?
You’re not wrong. I was 73:1 all in, and I was respectfully hard on that rig. She got flogged when necessary. 😂
I wanna say Albuquerque? That’s what the area code was. Super nice guy. He text me not long ago and said he was enjoying it. It’s gonna cool because he went from a v8 powered Rockwell rig on 50” mega SXs, to my rig. 😂 talk about polar opposites.
'84 Bronco II
El Chingón
That's Bill, he's in Albuquerque. It will be cool to see it in person.