DAN MFG

DAN MFG We make billet mechanical parts, modify race car gearboxes and were a job shop. We have the best quality, fastest turn around, and best prices, guaranteed.

Company owner Dan Barnes has been a machinist for over 30 years, and he has been repairing/ machining/ modifying Porsche, Lamborghini, and Ferrari gearboxes for almost 10 years. Our services include, but are not limited to:

-Billet mechanical parts production
- Bore repairs on spun bearings for any gearbox
- Dropped gearbox damage repair for any gearbox
- Crashed gearbox damage repair for any gea

rbox
- Reverse engineering and custom parts for any gearbox
- Oil in and out ports for any gearbox

- Porsche 930 and G50 bell and main shaft shortening
- Porsche spray bar installs on 915, 996, 997
- Porsche 996 AWD conversion
- Replace broken Porsche G50 and 993 broken throw out lobes

Please consider us for all of your machining needs.

We now offer free gearbox teardown inspection double checking for CAR OWNERS!! Spun bores are when your bearing race tha...
05/28/2024

We now offer free gearbox teardown inspection double checking for CAR OWNERS!! Spun bores are when your bearing race that’s pressed in, spins free once the gearbox is warmed up. There are 6 of them. We have found first hand that a number of gearboxes builders lack the integrity, intelligence or time to check and repair them properly. Seriously don’t believe it unless you see it. Or some say you can loctite them, you can’t.. The proper way to check is to put the main case, center section, and side cover in an oven and thoroughly warm it to running temp and put on a welding glove and see if you can spin them. If it does you steel sleeve the bores, so they press in again. If your builder disagrees, send it to us because we now rebuild 901-993s in total transparency and repair it properly.

05/22/2024

Another Porsche 911-996, Twin Turbo to GT3 oil cooling conversion shipping out from DanMfg, Las Vegas. We oil cool any gearbox.

05/20/2024

Do you think you lose horsepower with gearbox center section bearing bores that let go at 115 and 135 degrees?
After over a decade of dealing with many gearbox builders around the u.s. and world. I’ve come to this general conclusion about them and spun bearing bores.
Either they don’t know to check them, or they don’t care, or they’re in a hurry for a quick buck and won’t tell you. Maybe they will loctite it in without mentioning it. And that doesn’t hold especially in aluminum bores.
So if you want to know who you can trust?
Me. Or you.
That’s it. But I’m the only other person you are guaranteed will warm your gearbox up to running temps, check it, SHOW YOU! And repair it properly with steel sleeves.
So if you have a gearbox for rebuild, make sure they send us the main case and center section to check it properly. Don’t trust them unless you watch them. Period.
And I have a gearbox builder with over a decade of experience and next to zero returns who started here and I’m paying him the entire rebuild fee. DanMfg, Las Vegas

I make ring gear tensioners out of 3/4-16 brass rod because there’s no 19mm. I got sent some that was bad! .008” too big...
05/08/2024

I make ring gear tensioners out of 3/4-16 brass rod because there’s no 19mm. I got sent some that was bad! .008” too big. Luckily McMasterCarr sent me a free bar, scary fast. I’ll chase these threads with a die someday when I have one. But this GT2-3 side cover needs to ship

At DanMfg we recently made some prototypes for someone, and bought a 3D printer for the final product. And after…… we fo...
05/04/2024

At DanMfg we recently made some prototypes for someone, and bought a 3D printer for the final product. And after…… we found these solid models online and for commercial use, and got carried away having fun. We could never sell these, but we can give them away. So watch for these or others, in your box with your gearbox mods, repairs and racing products as a thanks! Give them away, or keep them! Design credits to We are also adding modeling and to our list of services.

02/10/2024

Pro Bono, "for the public good". We like doing machining for the local robotics teams in exchange for our names on their robots, as large as they think, wherever they think. Atleast i hope they do, ive never checked 😁 But if its 1265 holes, theyre deburring it.

02/06/2024

This mag 915 gearbox is mating to a 400hp motor after its done being built, so they wanted the works.

-All 5 bores steel sleeved. Now when this box warms up the bores wont let go of the bearing races.

-Guide tube update. Now they can replace the tube and or seal from the outside, like a late 915.

-Billet 7075 aluminum racing side cover. This is atleast twice as strong as any other 915 sidecover. It reduces case and diff flex.

-Oil cooling system thats better than an RSR set up.
AN8 in to our aluminum gush bar. It doesnt spray, it gushes oil on your gears, even at an idle. Check out our test video and see.
And a magnesium fork guide plate modified with a temp sensor and AN8 oil out.

- Billet 7075 aluminum bearing clamp plate is the strongest and lightest, and the only one with a lifetime exchange warranty.

*we are getting a faster cnc mill thanks to everyones support*
*watch for us rebuilding boxes soon too**

01/25/2024

Modified magnesium fork guide plate for early 915, with AN8 and temp sensor fittings to oil cool a racing gearbox coming soon. Get your magnesium and aluminum parts modified or repaired at DanMfg

01/23/2024

For Porsche 965, 993 & 996 Turbo, 996 & 997 GT2, GT3's. 2001-2013. Billet 7075 aluminum gearbox racing side cover with ring gear tensioner. By far the strongest sidecover available for these models. Clear anodized for added strength and corrosion resistence. Reduces case and ring gear flex. $664 at Dan Mfg
Replaces parts 950.301.312.51, 950.301.312.52, 996.301.312.50, 996.301.312.5

Address

Las Vegas, NV
89102

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 4pm
Saturday 10am - 4pm

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