If the problem is excessive travel, try adjusting the rears. If they are spongy, bleed the brakes again.

 

I have the 8800 pounds calipers. Dual piston. And the stock smaller 1500 master cylinder. The 2500 master cylinder will not fit in the brake booster.

I have rear discs also. But I have no pedal travel where nothing happens. I have a really stiff, really great pedal.

 

Ok, thanks Ham! Good to know someone else has 8800lb calipers that work.

Hey You, Thanks, I'll try adjusting the rears.

 

I was under the impression that the HD calipers were not a bolt on.

 

They bolted right onto my truck.

 

Single or dual piston? What year calipers?

 

Single piston, 1997 year calipers. It's these right here http://www.napaonline.com/Catalog/Ca...899_0248587881

 

Ah, yep. Same ones I have on my truck. Think they went to the dual piston in 98 or some such.

 

Interesting. Do the '98-up dual piston calipers bolt right on to the earlier model 2nd gen 4WD trucks? Do they really make a big difference in braking performance?

 

No, I don't think the dual pistons bolt right up. They do, to my knowledge, make a big difference in stopping power.