Making changes to a 10 bolt rear

[Schurkey]

Yup.

Crappy engineering. But that story has been repeated on this web site enough times that anyone interested should be able to find it.

 

[Leeztruk]

Thanks for the info., but really not interested in rear discs. For close to the cost of that setup, I can get a SF 14bolt and redrill the axles/drums to fit my truck, which looks like what may happen

 

[Caman96]

Thanks for the info., but really not interested in rear discs. For close to the cost of that setup, I can get a SF 14bolt and redrill the axles/drums to fit my truck, which looks like what may happen

I don’t have a 5 lug, so what am I missing? Why not these?

14 Bolt Replacement Axle Shaft GM 9.5 In Lh/Rh 33 Spl 88-98 GM CK2500 G2 Axle and Gear | 95-2010-002

95-2010-002 | 14 Bolt Replacement Axle Shaft GM 9.5 In Lh/Rh 33 Spl 88-98 GM CK2500 G2 Axle and Gear

www.vividracing.com

Edit: I think the picture is misleading, when you read description, it says 8 lug I believe.

 

[b454rat]

If you want to swap a 14sf into ur truck, you need a 2wd 14sf. Then you can get the 5 lug axle shafts n swap em in.

 

[Caman96]

If you want to swap a 14sf into ur truck

I was only speaking about OP.

 

[Leeztruk]

Spent the day today realizing I'm probably overthinking this. Why not just swap the rear brakes from a late model OBS onto my rear end? Getting info from Rockauto, it will be less expensive to replace everything, from the backing plate to the drum (both sides), than to get a SF 14 bolt, and modify that for 5 lug wheels. Moving from a JB3 leading/trailing brake setup to a JB5 duo-servo system should be a definite improvement. That way I don't have to make an appointment ahead of time to make a hard stop, as in intimate contact with a stationary object

 

[Schurkey]

JB5 and JB3 are the same at the rear, at least in the GMT400 era. The front is different, and the master/booster are different...but the ass-end is still the craptastic 254mm leading/trailing shoe drum.

You're looking for JB6, at least on a GMT400. If the newer trucks have different brakes under the same ol' option codes, I don't know about it. Certainly possible.

 

[Caman96]

I’ve racked my brain on this and the only way I can see to get 11” brakes, besides getting a Suburban 10 bolt or, the BEST option, a 14 bolt SF, would be to cut existing flange off and weld in a new 14b flange. My goal is to find a 14 bolt.

 

[Leeztruk]

Not sure on the JB designation, kinda pulled the JB5 outa my butt. All I know is, I can get 11" brakes for a '97 C1500 5 lug truck and put them on my '89 C1500

 

[Caman96]

All I know is, I can get 11" brakes for a '97 C1500 5 lug truck and put them on my '89 C1500

Yeah you can put 11” brakes on your truck when/if you have the correct 11” backer plate installed on your 10 bolt. How will you do that?