nbs rear swap into an obs 1997 tahoe

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anyone have done this? Looks like a few ways to make it work. Please can use some help.
Thanks in Advance

 

[Schurkey]

What welder do you have?

 

[stutaeng]

NBS from what? SUV or truck?

The 1500 NBS trucks had leaf springs, but SUVs had coil springs. 99-04 trucks had discs (then went to drums), but SUV retained rotors.

I believe the NBS truck swap would be easier, but all mounting points changed and the WMS width is also different. I wouldn't mess with the coil spring axle myself. Additionally, you have to figure out the proportioning valve deal if you go to discs.

...just saw Schurkey's response...

...I hope this helps.

 

[[email protected]]

What welder do you have?

mig

 

[Schurkey]

mig

220 volt? You'll need it.

A "house current" 110 volt unit will be at or beyond rated capacity. I had a 110 Century; upgrading to a 220 volt unit was one of my best moves.

Are you going to fabricate the brackets, or cut them from the older axle, and hot-glue 'em to the newer axle? Be sure to get them clocked properly, even side-to-side, and stuck on so the pinion ends up at the proper angle.

 

[[email protected]]

NBS from what? SUV or truck?

The 1500 NBS trucks had leaf springs, but SUVs had coil springs. 99-04 trucks had discs (then went to drums), but SUV retained rotors.

I believe the NBS truck swap would be easier, but all mounting points changed and the WMS width is also different. I wouldn't mess with the coil spring axle myself. Additionally, you have to figure out the proportioning valve deal if you go to discs.

...just saw Schurkey's response...

...I hope this helps.

suv and i added an adjustable brake proportion valve with nbs master

 

[[email protected]]

220 volt? You'll need it.

A "house current" 110 volt unit will be at or beyond rated capacity. I had a 110 Century; upgrading to a 220 volt unit was one of my best moves.

Are you going to fabricate the brackets, or cut them from the older axle, and hot-glue 'em to the newer axle? Be sure to get them clocked properly, even side-to-side, and stuck on so the pinion ends up at the proper angle.

yes i will be fabing brakets my welder is 110 though. you always give good advice. i will try the hot glue techneck

 

[618 Syndicate]

NBS from what? SUV or truck?

The 1500 NBS trucks had leaf springs, but SUVs had coil springs. 99-04 trucks had discs (then went to drums), but SUV retained rotors.

99-02 1500's had discs.

 

[stutaeng]

99-02 1500's had discs.

That's what I thought too, but I think I read on performance truck.net they said it was until 04...I don't know now.

I'll have to ask my buddy now. He's got a 03 cateye RCSB.

Sounds like OP has an SUV, so it doesn't matter in his case.

 

[Schurkey]

i added an adjustable brake proportion valve with nbs master

This is a 1500 Tahoe...right? Did you scrap the original 1500 calipers?

You'd need to if you installed a "nbs" master cylinder. It's not compatible with the original, low-drag calipers that 1500s and 6-lug 2500s came with.