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another 10 bolt strength questions

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Old 11-07-2016, 05:16 PM
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Default another 10 bolt strength questions

Whats up guys, i have about a 700-800whp at the moment. before i turn it up some more next season. I currentley have a stock 10 bolt...well with a girdle and a 3.23 factory gear. I dont plan on switching gears when i switch to a 9inch... BUUT in the mean time can i use my trans brake if i put some moser axles in it? A set of moser axles seem pretty cheap at 250. dont plan on leaving on much more then 5psi on the street. yes it would be prepped concrete. I know i need a 9 inch.

TH400 car with 3.23 gear.

builds 3psi on the two step at 3200
Old 11-07-2016, 05:23 PM
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Get a 9 inch. The axles aren't the weak link in the 10 bolt. The carrier and the 7.5" ring gear is. I started having issues with the 10 bolt on a regular basis once I got into the 1.40 60ft area. After replacing the carrier and gears multiple times I went with a Midwest Chassis Fab 9 rearend. Should have been one of the first modifications I did.
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Old 11-07-2016, 05:32 PM
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A trans brake duplicates the effect of a 6M,high shock loads.
Old 11-07-2016, 05:35 PM
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Originally Posted by Aaron at SDPC
Get a 9 inch. The axles aren't the weak link in the 10 bolt. The carrier and the 7.5" ring gear is. I started having issues with the 10 bolt on a regular basis once I got into the 1.40 60ft area. After replacing the carrier and gears multiple times I went with a Midwest Chassis Fab 9 rearend. Should have been one of the first modifications I did.
I am going with a MWC housing and tq arm and axle kit. Sourcing my own center section.

Were you using the trans brake to cut the 1.4s?
Old 11-07-2016, 05:37 PM
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No that was foot braking it.
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Old 11-07-2016, 05:52 PM
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Originally Posted by Aaron at SDPC
No that was foot braking it.
I tried footbraking my car but at 3k it starts to push through and doesnt build any boost. lol on the brake its fantastic but just beyond afraid to use it...i would see metal chunks everywhere.

I guess i can cheap out on the non beadlocks street lite wheels for a little while and save some money there cause i want to change the axle length 2 inchs in on both sides and run a 5.5 inch backspace wheel vs the 7.5s i have.
Old 11-07-2016, 05:56 PM
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I understand that for sure. I previously ran the standard 7.5" backspace wheels when I had the 10-bolt. When I had Midwest Chassis build my setup I had them narrow it 3" per side, and I run a 15x10 with a 4.5" backspacing.
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Old 11-07-2016, 06:50 PM
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Originally Posted by Aaron at SDPC
I understand that for sure. I previously ran the standard 7.5" backspace wheels when I had the 10-bolt. When I had Midwest Chassis build my setup I had them narrow it 3" per side, and I run a 15x10 with a 4.5" backspacing.

Is there a true benefit of narrowing the rear that much? do you have any pictures? Curious of doing 3inch narrower as well.
Old 11-08-2016, 07:57 AM
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I don't think there is really any benefit to it currently. It was an appearance decision for me originally. Here is an older pic of the car. Car is currently undergoing some big changes. Single turbo LSX setup on M1. Narrowing it 3" per side is about as much as you can go before you need to start moving things around under the car.

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Old 11-08-2016, 09:58 AM
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Never hurts to try and make a 10-bolt survive but at bigger HP it doesn't seem to last long. The stock mounting style torque arm location puts to much stress on the center of the housing and this is why you see a different mounting location for the torque arm for our fabricated nine inch.
Old 11-08-2016, 10:27 AM
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i read an article that a "built" 10 bolt can be aprox 25% stronger than stock but that doesnt sound like it can handle 500 plus hp imo.
Old 11-08-2016, 03:41 PM
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Originally Posted by MidwestChassis2
Never hurts to try and make a 10-bolt survive but at bigger HP it doesn't seem to last long. The stock mounting style torque arm location puts to much stress on the center of the housing and this is why you see a different mounting location for the torque arm for our fabricated nine inch.

I went ahead and placed an order through you guys today! Will also pm you
Old 11-08-2016, 03:43 PM
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What Center sections are you guys using? Looking for something 3.25 rear gear. i drive the car alot on the street. track sometimes. i ordered a 9inch housing narrowed with a anti roll bar and backbraced.
Old 11-08-2016, 03:54 PM
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Originally Posted by Hypforlife32
I went ahead and placed an order through you guys today! Will also pm you
Thank you for your order and I responded to your PM.
Old 11-08-2016, 04:05 PM
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Originally Posted by Hypforlife32
What Center sections are you guys using? Looking for something 3.25 rear gear. i drive the car alot on the street. track sometimes. i ordered a 9inch housing narrowed with a anti roll bar and backbraced.
You are going to want nothing less than a Strange Pro Nodular Iron Case or Strange HD Pro Thru-Bolt. As for differential you are looking at a spool or Strange S-trac.

This is the direction I would go with a vehicle making upwards of 800 plus HP.
Old 11-08-2016, 07:03 PM
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Originally Posted by MidwestChassis2
You are going to want nothing less than a Strange Pro Nodular Iron Case or Strange HD Pro Thru-Bolt. As for differential you are looking at a spool or Strange S-trac.

This is the direction I would go with a vehicle making upwards of 800 plus HP.
Car is going to make 900-1000whp maybe slightly more.
Old 11-08-2016, 07:04 PM
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Originally Posted by Aaron at SDPC
I don't think there is really any benefit to it currently. It was an appearance decision for me originally. Here is an older pic of the car. Car is currently undergoing some big changes. Single turbo LSX setup on M1. Narrowing it 3" per side is about as much as you can go before you need to start moving things around under the car.

This looks awesome with the offset. Made me order the 3 inch narrowed rear!
Old 11-09-2016, 08:20 AM
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Originally Posted by Hypforlife32
Car is going to make 900-1000whp maybe slightly more.
Those cases and differential options are your best choice. Now I know some of the off brand thru-bolts may be tempting due to cost BUT they come at a cost using them on anything that drives on the street. To many times we had to improve oiling and clearance the case to fit the ring gear.
Old 11-09-2016, 08:21 AM
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Originally Posted by Hypforlife32
This looks awesome with the offset. Made me order the 3 inch narrowed rear!

Great choice! Midwest Chassis builds awesome products you will not be disappointed.
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