Raffman

iTrader: (9)

My son just picked up an 03 Express van with a 5.3 in it. I was surprised to see it has a Dana rear with 3.73's a locker and disc brakes. I wonder if these would be a dirsct bolt in for our trucks? I know my 10 bolt is living on borrowed time! Anyone ever done this swap?

L7 Sierra

You can actually put a Dana 60 in our trucks you just need the car end so the brakes can bolt onto. I think all you need to do is enlarge the bore hole on the backing plate.

Car Craft did a story on this a year back or so and they used the same brakes on a 12 bolt and dana 60. The story was a comparison of hp loss with the 12 bolt 9 inch and dana 60 if you wanna search it up.

Raffman

iTrader: (9)

I'll look for it. This Dana allready has disc brakes on it. Wonder if a "c" clip eliminator is availible or even necessary?

02gmc5.3

iTrader: (11)

Any pics or measurements?

Raffman

iTrader: (9)

I got my guy at the salvage yard on it. He thinks the van rear might be a little wider which would rule it out for me, I'm tucking slicks now. I can measure the rear in the van but my truck's in storage and can't get to it so if someone can get the inside measurement on a truck we'll compare. I talked to Moser Eng. and they say a Dana with 35 spline axles will stand up to my 650 RWH no problem.

02gmc5.3

iTrader: (11)

Stock is about 68" from WMS to WMS. I have a 6 lug 14 bolt out of a 96 2500 in my 02 that is 65" which didn't leave much clearance on the leaf springs with the factory wheels so I added 1.5" wheel spacers on it. The narrow 14 bolt may be better for you if your trying to fit wider slicks.

Raffman

iTrader: (9)

Didn't know the 14 bolt goes back to 96. That narrow one would work great for me , my leaf springs are gone with the airride 4 bar. My local salvage yard can't find a 14 bolt they need a part #, I thought GT5 was the rpo but they say that means 410"s
Does anyone know what #'s the salvage yards use?

02gmc5.3

iTrader: (11)

Yep, search on www.car-part.com. The perches will have to be moved some and it is a tight fit.

Raffman

iTrader: (9)

Just looked at car-part,com , is the 11.5 ring gear the 14 bolt?

02gmc5.3

iTrader: (11)

9.5 with 6 lug.