Rear End

Elvis · 04-03-2007, 06:49 PM

OK, I'm gradually getting my '67 coupe to be what I want it to be. It has a 302 with mostly Edelbrock Performer RPM stuff - heads, intake, carb, fuel pump, etc. It has a C-4 transmission which I am beefing up. I think that I need to do something with the rear end but I'm not sure what. It's not a show car but it is a head turner and I like it to have some ooomph. I don't want to change a lot of stuff underneath but what would you chaps recommend that I do to the rear end that would be a relatively simple upgrade, i.e., not cause me to make a bunch of other modifications. Thanks for any help. E.

bmxmon · 04-04-2007, 01:14 AM

I say gears and a limited slip/posi/trac loc whatever you want to call it. Sounds like your mustang is pretty sweet now a days. Perhaps disc brakes if you wanted to go that route too.

Gearhead999 · 04-07-2007, 08:58 AM

Changing the rear gears to 3.55 will really wake your car up. It is an easy swap too. Buy, a pumpkin ready to go. Remove the axles, change pumpkins, fill will lube and you're ready to go. Oh, yeah the speedo will be off some, but that's not all that hard to fix. [different drive gear]

goodyear1984 · 04-24-2007, 03:03 AM

im guessing u have a 8" rear end....you could go and buy a complete center section built read to install for around 800 bucks ..prolly not a bad idea cuz evert thing will be fresh(clutches bearings gears) i would go with a 411 gear but it depends on how ur gonna drive it

rwhite65 · 04-25-2007, 03:20 AM

I bought my center section years ago new for about $450. I dont remember where I got it, but you should be able to find them for a reasonable price.

goodyear1984 · 04-25-2007, 11:50 AM

where did u find 1 for 450? ive never seen 1 that cheap ever....was it complete locker er what?

rwhite65 · 04-25-2007, 05:59 PM

It was from one of those ads in the back of the Mustang magazines, but like i said it was back in 95 when I got it. Got mine with a 4.10 and a trac loc.
Ryan

goodyear1984 · 04-26-2007, 12:28 PM

yea i havent seen any that cheap..id like to i need one for a 68 galaxie 500

Rev · 04-27-2007, 02:47 PM

I use an 8" 3.25 with an Auburn Pro limited slip. Without overdrive, I don't want to spin more than the 3300 at 70 mph. (my usual highway cruising speed). My set up is similar to yours with a C-4. I got my center section from Currie in Ca. but went to the Auburn Pro after failures of other limited slips. I did also have to replace the Auburn Pro after a few years of hard use. They will give you a new one for $150 if it's less than 4 years old. Of course there still is the hassle of having to remove and replace the failed unit. I think I'm pretty hard on the 8" with the way I drive and 350 or so hp.

Rev

04-03-2007, 06:49 PM	#1
Elvis Registered Member Join Date: Jun 2000 Location: Sherman, Texas Posts: 188	Rear End OK, I'm gradually getting my '67 coupe to be what I want it to be. It has a 302 with mostly Edelbrock Performer RPM stuff - heads, intake, carb, fuel pump, etc. It has a C-4 transmission which I am beefing up. I think that I need to do something with the rear end but I'm not sure what. It's not a show car but it is a head turner and I like it to have some ooomph. I don't want to change a lot of stuff underneath but what would you chaps recommend that I do to the rear end that would be a relatively simple upgrade, i.e., not cause me to make a bunch of other modifications. Thanks for any help. E.

04-04-2007, 01:14 AM	#2
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: Rear End I say gears and a limited slip/posi/trac loc whatever you want to call it. Sounds like your mustang is pretty sweet now a days. Perhaps disc brakes if you wanted to go that route too. __________________ Alex

04-07-2007, 08:58 AM	#3
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: Rear End Changing the rear gears to 3.55 will really wake your car up. It is an easy swap too. Buy, a pumpkin ready to go. Remove the axles, change pumpkins, fill will lube and you're ready to go. Oh, yeah the speedo will be off some, but that's not all that hard to fix. [different drive gear] __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

04-24-2007, 03:03 AM	#4
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Rear End im guessing u have a 8" rear end....you could go and buy a complete center section built read to install for around 800 bucks ..prolly not a bad idea cuz evert thing will be fresh(clutches bearings gears) i would go with a 411 gear but it depends on how ur gonna drive it __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

04-25-2007, 03:20 AM	#5
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: Rear End I bought my center section years ago new for about $450. I dont remember where I got it, but you should be able to find them for a reasonable price. __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

04-25-2007, 11:50 AM	#6
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Rear End where did u find 1 for 450? ive never seen 1 that cheap ever....was it complete locker er what? __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

04-25-2007, 05:59 PM	#7
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: Rear End It was from one of those ads in the back of the Mustang magazines, but like i said it was back in 95 when I got it. Got mine with a 4.10 and a trac loc. Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

04-26-2007, 12:28 PM	#8
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Rear End yea i havent seen any that cheap..id like to i need one for a 68 galaxie 500 __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

04-27-2007, 02:47 PM	#9
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: Rear End I use an 8" 3.25 with an Auburn Pro limited slip. Without overdrive, I don't want to spin more than the 3300 at 70 mph. (my usual highway cruising speed). My set up is similar to yours with a C-4. I got my center section from Currie in Ca. but went to the Auburn Pro after failures of other limited slips. I did also have to replace the Auburn Pro after a few years of hard use. They will give you a new one for $150 if it's less than 4 years old. Of course there still is the hassle of having to remove and replace the failed unit. I think I'm pretty hard on the 8" with the way I drive and 350 or so hp. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

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