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Below you will find a list of the parts with their
corresponding part numbers required to update an F-body 10 bolt
disc or drum rear to the 98-up LS1 disc brakes. There are several part numbers
and prices not listed and I will update the chart with them as soon as I
get them. I am estimating $15-$30 for those parts not yet priced. As you
can see, the total price for the conversion will be approx. $550, not including
pads. I chose Hawk HPS pads ($55) to match my 1LE HPS pad up front, but
there is a wide range of prices and different pad mats starting from $30.
Also, hooking the parking brake up to the earlier F-body style will require
some fabrication. If you are upgrading a drum rear, a new prop valve (approx.
$50) may be required, depending on the year of the vehicle.
* Please note that your local dealer may have
much higher prices then I have listed, and most likely will require
that the GM parts be order over the web.
** Stainless steel flex hoses may be substituted
for the GM rubber hoses and slotted rotors may be subst for the
solid rotors, but this will add to the cost of the conversion.
A NOTE ON CALIPERS-These calipers are NEW
GM/PBR calipers! I have found that the rebuilt units from parts
stores are approx. the same price before they add the
core charge! Since the GM calipers are new, there is no core
charged when ordering them. They also come with the caliper to caliper
pin mounting bolts. As an added bonus, the GM calipers will allow
the installation of a 100% new rear braking system.
|
Parts
|
Quantity Req. |
Q x Price |
Price each |
Mfg.
|
p/n |
description |
Avail at |
1 |
$60 |
$60 |
GM |
12455127 |
LS1 LH rear
PBR caliper (NEW-NO CORE CHARGE) |
GM |
1 |
$60 |
$60 |
GM |
12455128 |
LS1 RH rear
PBR caliper (NEW-NO CORE CHARGE) |
GM |
1 |
$61 |
$61 |
GM |
10434796 |
Rear LH
backing plate with drum parking brake shoes |
GM |
1 |
$61 |
$61 |
GM |
10434797 |
Rear RH
backing plate with drum parking brake shoes |
GM |
2 |
$46 |
$23 |
GM |
12456459 |
Caliper
mounting brackets |
GM |
2 |
$34 |
$17 |
GM |
10424968 |
Rear parking
brake cables |
GM |
1 |
$4 |
$4 |
GM |
10289539 |
Rear LH
parking brake bracket |
GM |
1 |
$4 |
$4 |
GM |
10289540 |
Rear RH
parking brake bracket |
GM |
2 |
$48 |
$24 |
GM |
22163484
|
Rear brake
hoses (to calipers) w/ banjo bolt |
GM |
1 |
$0 |
|
GM |
|
Rear brake
hose (chassis to axle) |
GM |
1 |
$0 |
|
GM |
N/A |
Prebent
LS1 metal brake line (mounted on axle) |
Salvage
yard |
4 |
$3.75 |
$15
|
GM |
12530697
|
Caliper
guide pins |
GM |
2 |
$124 |
$62 |
Aimco
|
55050 |
Rear rotors
with parking brake drum |
AutoZone |
1 |
$15 |
$15 |
Brakeware
|
H5927 |
Anti-rattle
pad springs and caliper pin boots |
AutoZone |
|
|
|
|
|
|
|
Total |
$532 |
|
|
|
|
|
|
|
|
|
|
|
|
1 |
$55 |
$55 |
Hawk |
HB250F653 |
LS1 HPS
rear pads |
ThunderRacing.com |
Pictures
The new GM calipers. These also come
with the mounting bolts
The backing plate and drum assembly
Caliper mounting brackets
Parking cables and parking brake brackets
Caliper brake hoses and banjo bolts
Guide Pins
Hardware
Rotors
Installing
Please visit www.thirdgen.org. There
are several very good tech articles on upgrading brakes, including
an article on how to modify the drum rear to accept the disc backing
plates here: http://www.thirdgen.org/newdesign/tech/
Also, please visit this thread on thirdgen.org :
Last Updated on 6/5/03
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