Rear Discs - Pirate4x4.Com : 4x4 and Off-Road Forum

Exploder · 07-23-2002, 04:13 PM

So I know that I am a newbie and all, but I am working on a rear disc conversion on my small bearing 9" rear and need to know which discs to go with. Do I use the late 70's F-150 front disc from a 2WD or 4WD? I have also heard of Jeep discs being used in th back as well. I will be using the A&A manuf. weld on brackets but in order to have those brackets welded in the right spot I need to have the rotors on the truck and hit them with air to center them and then do the weld... right? I know there is a lot of you that have done this already but I need assistance.

sicaz66 · 08-01-2002, 10:20 PM

i`ll be using the pre 84` caddy calipers and 83`ish wrangler front rotors for my 9"disc conversion.

inphobic · 08-02-2002, 05:43 AM

If you use the smaller metric caliper get the jeep rotor. It is a thinner rotor which fits. The ford rotors I used were pretty wore out and I had to turn them down quite a bit to make them fit. While I had it on the brake lathe I cleaned the in side of the rotor so it slips on and off nicely. I also used 610-290 Dorman wheel studs in the 9". Works great to center the rotor.

Here is a write-up that lays out the caliper situation pretty well.
www.alloffroad.com/issue/2001/may/reardisc.htm

Thumper046 · 08-03-2002, 11:13 PM

Also a couple good post already going here!!!!

http://www.pirate4x4.com/forum/showt...threadid=65185

07-23-2002, 04:13 PM	#1 (permalink)
Exploder Registered User Join Date: Jan 2002 Member # 9261 Location: Anchorage, AK Posts: 20	Rear Discs So I know that I am a newbie and all, but I am working on a rear disc conversion on my small bearing 9" rear and need to know which discs to go with. Do I use the late 70's F-150 front disc from a 2WD or 4WD? I have also heard of Jeep discs being used in th back as well. I will be using the A&A manuf. weld on brackets but in order to have those brackets welded in the right spot I need to have the rotors on the truck and hit them with air to center them and then do the weld... right? I know there is a lot of you that have done this already but I need assistance.

08-01-2002, 10:20 PM	#2 (permalink)
sicaz66 Registered User Join Date: Jun 2002 Member # 12413 Location: so cal Posts: 604	i`ll be using the pre 84` caddy calipers and 83`ish wrangler front rotors for my 9"disc conversion. __________________ Early bronco,408 stroker,low geared c6 trans,atlas case,spider trax rear,up d44 front 39.5 iroks.

08-02-2002, 05:43 AM	#3 (permalink)
inphobic Rock God Join Date: Nov 2001 Member # 8422 Location: Kansas City, Kansas Posts: 2,193	If you use the smaller metric caliper get the jeep rotor. It is a thinner rotor which fits. The ford rotors I used were pretty wore out and I had to turn them down quite a bit to make them fit. While I had it on the brake lathe I cleaned the in side of the rotor so it slips on and off nicely. I also used 610-290 Dorman wheel studs in the 9". Works great to center the rotor. Here is a write-up that lays out the caliper situation pretty well. www.alloffroad.com/issue/2001/may/reardisc.htm __________________ Jake Good Special Thanks to: COOPER TIRES, Trail Tough, Inland Truck Parts, Kansas Rocks, The Awesome RBR Crew!

08-03-2002, 11:13 PM	#4 (permalink)
Thumper046 Registered User Join Date: Dec 2001 Member # 8519 Location: Rainier, Wa Posts: 158	Also a couple good post already going here!!!! http://www.pirate4x4.com/forum/showt...threadid=65185 __________________ Keep the rubber side down!!! Absolute power corrupts absolutely, Which is a problem if your absolutely powerless.

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