bottledbird68

iTrader: (2)

Been searching without much luck. Can I take an 8 lug semi float rear out of an hd truck and swap in aftermarket 6 lug axles? Found a couple good deals on 8 lug semi float nbs rears but need 6 lug for my truck.

1FastBrick

iTrader: (17)

Yes, It's been done before.

You don't even need special axles.

The Brakes will be an issue though...

bottledbird68

iTrader: (2)

Yeah I'm not worried about the brakes. I read up on that part. Just couldn't find anyone that swapped axles. Was looking at aftermarket ones from summit. For the couple hundred bucks they cost I can be into a semi float 14 bolt that bolts right in for half of an ss or max 14 bolt

bottledbird68

iTrader: (2)

Wasnt sure if the correct length was offered. Any idea off the top of your head what the axle length in an hd rear is?

1FastBrick

iTrader: (17)

Absolutely! I just ordered some from summit.

Stock replacement and slightly better just below.

I went with the slightly better for $13 more an axle.

http://www.summitracing.com/parts/mgr-15521928

http://www.summitracing.com/parts/mgr-mg27106

bottledbird68

iTrader: (2)

Sweet. Thank you very much

1FastBrick

iTrader: (17)

There is a slight difference between 8 lug and 6 lug axles but those are the axles that will slide right in. The application is for a 4x4 88-98 6 lug 14 bolt 9.5 semi floater used in heavy 1/2 ton or light 3/4 ton with 6 lugs. 2wd axles are shorter and will not work.

I used a light duty 2500 14 bolt 9.5 Semi float axle from a GMT 800 Silverado in Evil GMC's axle build. The also came in 1500HD model trucks.

https://www.performancetrucks.net/fo...thread-467473/

1FastBrick

iTrader: (17)

Your welcome!

bottledbird68

iTrader: (2)

So is the part number you gave for the 88-98 rear?
I'm looking to convert a 2001 8 lug semi float rear to 6 lug
Or am I confusing myself here lol?

1FastBrick

iTrader: (17)

Yes, those axles are the only ones that will swap into that specific 8 lug rear end to convert it to 6 lug. We used them in Evil GMC's build. Same rear end using 6 lugs axles and custom made flanges to retain the factory 1500 brakes. There is a slight difference in length between the 6 and 8 lug axles. I believe it was 1/16-1/8 per side.

https://www.performancetrucks.net/fo...ctures-477641/

I only found 1 company that would make custom axles for that rear end and they want around $800-$1000.