Bolt question for rear brake swap...

[Loochy88]

Ive collected all the parts im going to need. Even the extra shims are on the way in case i need those. The only things im wondering about now are the bolts. Are any of the bolts from my drums reusable. Ive been looking at some diagrams and im a bit confused. first of all, are the bolts that hold the backing plate to the axle (bolt numer 48 in this picture) the same as those used for holding the drum on. Will i need new bolts for this? If so what size?

Bolt number 45 in that same picture: is that the same bolt that holds the caliper together as seen here labeled as number 2. In other words is this the bolt the caliper slides back and forth on, as well as the bolt that holds it to the backing plate?

its a little confusing because i dont actually have the parts sitting here to look at. they're at home and im away at school. im planning on doing the swap soon and im just trying to gather materials.

[ February 25, 2004, 06:03 PM: Message edited by: Loochy88 ]

[AllTheGoodNamesAreGone]

umm.. dont quote me on this.. however

With the new setup you will be no longer using the bolts, you are gunna want a set of wheel studs..

basicly since our disk setup's are "floating"
the disk kinda sanwiches between the hub and the wheel.. and then the wheel lugs hold it all together..

i hope that helps a little..

did you figureout what you need to get for the parking break?

what year brakes are you upgrading to?? 97+??

[hockeyman]

The bolt pictured as #2 and #45 are two different bolts. #45 in the first photo holds the caliper's main housing to the backing plate. #2 in the second photo is the slide bolt for the caliper's outer-most brake pad(s).
Ok, the 4 backing plate bolts (#48) are interchangeable from drum-to-disk. I actually broke one when I bought the rear disk setup, and needed one from my old drum rear.
#45 bolts (2 per side) hold the caliper's main housing firmly to the rear suspension, and you will need these from the person whom you are buying the disk parts from. The drums don't have or need those bolts.
#2 "slide" bolts again are needed (duh) for the completion of your setup, but aren't responsible for holding anything else together other than the two parts of each caliper. Actually, when it's all finished, one slide bole comes out per side allowing the replacement of the rear pads by flippping the caliper upwards and not unbolting everything.
Make sure you get the emergency brake cables for disk brakes before you start. It will put a severe damper on your day if you forget them.
Email me with any questions. I have done rearend swaps in quite a few cars, and will offer any help I can give.

-Marc

[hockeyman]

To break it down on what holds what:
Each rear axle and wheel has it's own "c" clip in the center pumpkin that holds it together. The two bolts that are pictured as #45 in the first photo hold the caliper inplace, but do not hold the axle down unless the "c" clip breaks and the axle starts drifting outwards. By then, it's bigtime noticeable of the sounds the rear will be making...if it's still turning.
The 4 backing plate bolts do not hold the axle inplace, just the calipers. As for wheel studs, they only hold the wheel to the rotor.
<I was looking for a smiley face here, but too many changes on this board allowed this sentence.

-Marc

[Loochy88]

thanks so much Marc! [img]smile.gif[/img]

Originally posted by hockeyman:

#45 bolts (2 per side) hold the caliper's main housing firmly to the rear suspension, and you will need these from the person whom you are buying the disk parts from. The drums don't have or need those bolts.

these are the only two bolts i still need then. they might have been stuck in the box somewhere, but i will have to check when i get home to be sure. if not do you have any idea what size they were or maybe know where i might find out?

thanks again for your help!

[Loochy88]

Originally posted by AllTheGoodNamesAreGone:



what year brakes are you upgrading to?? 97+??

these are going to be 93-96 brakes. not the 97+

i just wanted to get rid of the drums.

[Camaro_SLP]

Where did you pick up all the parts to swap to discs?

[hockeyman]

Originally posted by Loochy88:
these are the only two bolts i still need then. they might have been stuck in the box somewhere, but i will have to check when i get home to be sure. if not do you have any idea what size they were or maybe know where i might find out?

I'm not sure...sorry. I was never good with thread size's or their applications. I have a few old coffee cans with an assortment of nuts n' bolts that was collected over the years, and almost everytime I need a nut or bolt, they're in there 99% of the time. If you can't find them, let me know and I'll go in some of the cans to see if I can match a few up to my rear and send them to you. :D

<edit> Check the back of the calipers to see if the person threaded them in for you so you don't lose'em. They fit into the back of each caliper.

-Marc

[ February 25, 2004, 11:51 PM: Message edited by: hockeyman ]

[Loochy88]

well, im in business definitely! i called my dad and told him what to look for. he said everything was there, so i should be good to go. i have one other question. are the wheel studs on the car now going to carry over, or am i going to need new ones? i would assume these would be interchangable... but you never know. also, are there any seals im going to need besides the main seal on the differential cover?

Originally posted by Camaro_SLP:
Where did you pick up all the parts to swap to discs?

http://www.camarov6.com/cgi-bin/ulti...;f=27;t=001144

[ February 26, 2004, 12:20 AM: Message edited by: Loochy88 ]

[hockeyman]

I just used silicone for the rear diff cover. I applied it, let it dry for a few hours and just before installing it to the rear housing, I put a thin layer of silicone on the housing itself where they meet.
As for the wheel studs, they are interchangeable. If you have a few that don't look so good, replace them before you install the axles. The axles *must* be partially or fully pulled out (once they are installed) in order to replace the studs, and it's a PITA!

-Marc

[Loochy88]

sounds good! thanks again for the info. [img]graemlins/bowdown.gif[/img]

[Camaro_SLP]

Originally posted by Loochy88:
these are going to be 93-96 brakes. not the 97+

i just wanted to get rid of the drums.

What's the difference between 97+ brakes, and 93-96?

I know there was an install guide floating around before...does anyone have it?

What are all the parts you need for the rear? calipers, e-brake cables, rotors, backing plates..is that is?

I want to get started on this project asap.

[StudlyCamaro]

the newer brakes are bigger, also they are much better if you are going to run a 15" wheel( less material has to be ground down to make the wheel fit)(not that larry is going ot be runnin a 15 inch wheel [img]tongue.gif[/img] )

[Loochy88]

Originally posted by StudlyCamaro:
the newer brakes are bigger, also they are much better if you are going to run a 15" wheel( less material has to be ground down to make the wheel fit)(not that larry is going ot be runnin a 15 inch wheel [img]tongue.gif[/img] )

[img]smile.gif[/img] no, definitely not in the near future [img]graemlins/burnout.gif[/img]