The GMT800 Suburban Tahoe and Silverado SS all use dual piston rear caliper there is a thicker rotor available too.

 

I did. It’s bolts right on, but the calipers will be clocked differently.

 

add one more installed 14 bolt.

my truck=2012 yukon denali awd (10 bolt)

donor truck=2013 cadi escalade 2wd

Direct swap:
-All links (4+panhard) bolted right back in place
-swapped rotors and calipers, only had to massage the brake lines over the pumpkin
-used the same universal joint and stock driveshaft, will probably get one built/balanced a 1/2" shorter but am able to use the stock length in the mean time.
- stock 14bolt cover fits with spoon adjustable panhard bar (barely) i have the lowest profile PML cover i'm going to try and put on, but i think i will have to lose the adjustable bar. Or more of a drop pulls the rear axle forward and may allow it.

 

Will a 01 2500HD 14 bolt 10.5” full floating rear end work? I know i’d have to get custom axle shafts made in order to to have 6 lug flanges. It’s going on a 2006 crew cab?

Is there any particular reason why everyone goes with a 9.5 semi floating instead of a 10.5 or 11.5 full floating?

I’ve read thru several threads about the 14 bolt but cant seem to find what i’m looking for

Thanks!

 

Full floats are different animals. Not sure what your trying to do so not sure how to answer your question.

The full floats are alot heavier. Will it bolt in place of a 8.5 on a similar body style, Yes. But you will likely have to shorten the drive shaft and definitely have to change the U joint.

 

Hey all,

Got what seems like a stupid question I'm having a hard time finding the answer to. I've got a 2002 1500 that I am getting ready to 14-bolt SF swap. I have the 88-98 6 lug axle. I bought the ruff stuff simple swap kit, and 1320 wheels brake spacers, and while I'm re-gearing and installing the true-track I'd like to set it up with 1500 suburban 2-piston disc brakes. Here's the question I can't seem to wrap my head around and I haven't seen any pictures that answers my question either. My understanding is that the 14SF and a 10 bolt have different diameter axle tubes. So when I am purchasing the backing plate/caliper mount, I assume those have a 10 bolt tube diameter rather than a 14. Does the spacer push the caliper mount past the end of the axle tube so that smaller diameter doesn't matter? Planning on buying all new 2-piston suburban brakes which isn't going to be cheap so I'd like to be confident its going to work before I drop $400 on all that stuff.

Thanks!

 

The tube size does not affect the brake backing plates or brake mounting hardware. The ID is larger on those items than the Axle Tube.
The 88-98 Brake mounting Flange is in board something like 5 and 1/2 inches that's why it requires a spacer to push it out to the same location as the later 99-06 style brakes. The difference with the Spacer can be seen in this build thread below. It's also listed at the beginning of this thread.
https://www.performancetrucks.net/fo...p-pics-489403/

 

Exactly the information I was looking for. Thank you for the fast reply!

 

this may have already been answered and i apologize if it has ive just overlooked it like 6 times.. lol how many times ive this post top to bottom hah... anyway heres what i got.. im doing a 14 bolt swap into a nbs rcsb 2002 sierra sl 2wd to be exact... it currently has factory 10 bolt with 3.42 one wheel peel w/ disc brakes... now for my donor rear end, it came from a 2007 nnbs vortec max 4x4 truck gt5 g80 AXN..it is the 14 bolt w/ 6 lug axles, and disc brakes.... now from everything ive gathered from reading this post, it should be a pretty direct swap with the brakes and everything.. my concerns are 1. what u joint will i need to run?? 2. will i be able to use the ebrake hardware on the 14 bolt or will i need to go another route with the ebrake?? im gonna be doing a shock relocation when i do the swap... what rear diff cover is guy using a few posts back in this thread looks nice and beefy but not to standoutish lol....thanks for any info you guys have for me i greatly appreciate it

 

Well well well fancy meeting you here lol... I was about to ask about the "barely" clearance of the Spohn panhard with the factory cover on my new (to me) 14 bolt swap, then I saw your screen name and realized that I'm pretty sure I've already read the answer in your build thread over on the Tah/Yuk forum. I've been dragging my feet on completing this swap over whether to disturb the pinion or not? Would be so much easier to leave it alone and just install the Truetrac and call it a day......but then every noise I heard back there would have me thinking the pinion bearings were goin out? Anyway, just wanted say whattup once I saw who it was lol... Take care bro

One more question: Any issues with driveshaft due to the extra 1/2" length on 14 bolt now that you've got some miles on it?