I'm in need of replacing the rear end/differential on my little Pony, and I'm curious as to which ones will bolt in.
I am thinking of possible a Fairmont, which is probably the 6.75 rear that I have on the car right now, however I am not sure.
I would like to put an 8" on the car but there are none in the yards around here except for one, which wants $350 for it! :o
i can ask around out here and see if any of the local yards have a v6 model pinto they came stock with the 8" rear end
Where are you located? I've got an 8" housing, and can put together the brakes, drums, 4 lug axles, and a center section with (?) gears, no problem. The only question is how much for shipping, if I got $50 in my pocket after shipping I'd be pleased.
I'm leaving tomorrow for a two week Navy Reserve "vacation", so email me at bob_10@comcast.net if you're interested.
Quote from: dave1987 on August 05, 2008, 01:55:31 PM
I am thinking of possible a Fairmont, which is probably the 6.75 rear that I have on the car right now, however I am not sure.
Unfortunately, the Fairmont is built on the Fox platform (same as the 79-93 Mustangs) which means you would have about the same luck putting one in from a fox Mustang. The Fairmont probably has the 7.5" diff in it. I do believe the Farimont one is wider too, but I may have my bases way off.
On a side note, are the brakes/backing plates the same on the 6.75" and the Pinto 8"? If so, swapping out would be a breeze. IIRC the drums are the same on my 87 Mustang 7.5" as are on my 77 Mustang 8", but the backing plates are probably different. (to accommodate the difference in Salisbury vs. Hotchkiss axleshaft mounting)
--Doug
Getting on here a little late, but if you're still looking for a rear end. The Ranger p/u may be a good choice, especially the 8.8 or the 7.5. You'll have 5 bolt axles and much bigger brakes. Good luck.
Don't over look Maverick rear ends. They are slightly more narrow at -1/2 inch on each side (approx) and the perches may need to be relocated. Most have 5 lugs and the bigger brakes. I happen to like the look of a deeper offset wheel in the back on cars. IMHO
71HANTO
71HANTO:
Really? The Maverick rear end is only 1/2" narrower on each side? Wow, I would have never guessed that they were narrower. I assume that moving the perches would require some cutting/welding work, yes? It seems like it would be a good retrofit on a rear end, and like you said, you get both discs and a five bolt lug pattern. I have been SO toying with pulling my rear end and dropping a better one under it.
Chris
Popbumper,
I have a maverick 8 inch rear that I pulled at a Pick-Your-Part when I was looking to move up to 5 lug. The reason I didn't go that route is because the rules for vintage racing do not allow significantly upgrading brakes so I stayed with the four lug. By the way, the rear brakes are drum type not "discs". I am happy to do some measuring for you if you wish when I get home from work. The center section has 3.00 gears. Too bad your in Texas because I'm in California. I would sell the drum to drum setup for $125.
71HANTO
...darn, and I would BUY it from you! Oh well, such is our hobby, we are pretty spread out!! I thought the rear would be disc - though I >believe< from your correction that rear discs on a Maverick did not happen until '76 or '77 - but I may be incorrect there, too.
Thanks for your help, if you can get measurements for me, that would be great.
Chris
>>> On a side note, are the brakes/backing plates the same on the 6.75" and the Pinto 8"? <<<
I can't account for the backing plates, but I can definately tell you that the drums are different (regardless of having the same diameter). The 8" drums have a larger center hole. When I got my 8" I was SO glad I spent the extra $10 to get a "drum to drum instead" of an "axle to axle" rear end!
By the way the cost "out the door" (original price, sales tax, core charge, admission tax, and environmental surcharge) was $118. Had I found one at their 50% of sales it would have been about $60. You might want to print that and show it to the guy who wants $350!
Tom
Quote from: Wittsend on September 16, 2008, 12:12:33 PM
You might want to print that and show it to the guy who wants $350!
If by chance it is an 8 inch with a Posi/Limited Slip, $350 is dirt cheap!
Quote from: 71HANTO on September 16, 2008, 01:43:46 PM
If by chance it is an 8 inch with a Posi/Limited Slip, $350 is dirt cheap!
The going price for a late "ribed", third member, with new gears and a new posi, all set up and ready to install is $500 to $700, with a traction-lock at the low end and a Detroit locker at the high end cost.
Quote from: popbumper on September 16, 2008, 10:21:06 AM
Thanks for your help, if you can get measurements for me, that would be great.
Chris, the Pinto rear measures 57" wheel flange to wheel flange. The Maverick measures 56" (one inch NARROWER). The spring perches on the Pinto are 42.5" center to center. The Maverick's are 43.5" (one inch WIDER). These were HAND measured so a potential fractional +/-.
71HANTO
Most helpful, thanks!!
Chris
I have a complete 8" rearend out of a 79 Pinto wagen for sale in Bakersfield Ca. if someone needs one? It is complete drum to drum and it also has the E-brake cables on it! Howard 1-661-654-0762
Still looking for an 8". Got another question though. I want to keep the four lug bolt pattern so I can still use my steel styled rims. Is this at all possible when upgrading to an 8" rear? Or should I just stay with a 6.75?
dave1987,
The conversion of the 8" axle with 4 lug 4.25" ford pattern will require wheels with a larger center hole. My 72 was upgraded to a 8" traction Lok and then we discovered the 13 X 7.5 steel wheels had the centers from the 71 to 75 pinto with the smaller holes. Judicious use of a pneumatic grinder opened the holes to the proper diameter, leaving just enough of a raised lip to support the hole opening. If you have wheels with the larger hole, you're home free.
BTW , look into axle accessories for Street rods using the 8" rear axle, it'll make you drool thinking of the possibilities! :amazed:
Pintosopher
The 8" in my car came from a '68 Mustang (wrecked :accident:). It had all new bearings and seals, 3:55 gears and an Auburn locker, $400.00 drum to drum. I swapped in 4 lug axles from a Maverick rear so I could use my wheels. The whole swap was a simple bolt-in with no modifications needed. I really didn't know there were so many different variations of the 8" rears. I guess I got lucky! ;D
My 76 came with an 8" from the factory and it uses the same wheels as my other two pintos with the 6.75 axles. Use a pinto 8" and your wheels should fit just fine. I have used the wheels from my 8" pinto onto the other two and they all fit just fine.
I guess I'll see how much a local yard wants for an 8" off a 76 Pinto with a V6 in their yard.
i have a 8" out of pinto if u get back over to wa but if ur driving ur pinto that i think u had a trunk it wont fit ud need a hb or wagon to hall so we'd hafta put it in wail u were here i paid 175$ from a yard but im wanting five lug and already have the front five lug stuff im looking for a 8.8 a out ranger i think is the way to go as i have a new detroit looker for one that would have been 800$ had i not gotten it for free!
but i had a 88 ranger 2wd sport that had a 7.5 it looked to be a bolt in but would leave u with five lug and ud hafta find mustang fox axles and have them cut down to fit or have the ranger axles re drilled but just hoping to give u some more options
Mine is a 4 cylinder, not sure why it got the 8" axle but it did. Just have to ask if they have any pintos and go back and look at them and see if the axle has bolts in the back cover or not. Mines a 4 cyl with the 8" and ive heard of V6's with 6.75s. I saw a post where that was mentioned just a few days ago.
Quote from: pintoguy76 on January 26, 2009, 09:23:33 PM
Mine is a 4 cylinder, not sure why it got the 8" axle but it did. Just have to ask if they have any pintos and go back and look at them and see if the axle has bolts in the back cover or not. Mines a 4 cyl with the 8" and ive heard of V6's with 6.75s. I saw a post where that was mentioned just a few days ago.
the rear ends can be a week link in these cars and if they are abused they go out and some one replaced them with what was at hand so over the last 35 years its not unreasonable to believe even a 8" would go out
Sorry to be so late with this post folks,been gone for awhile, My rear came from a mustang II,four bolt pattern direct bolt in. My pinto already had mags on original diff when i grenaded it,so not sure about original wheels but the mags bolted right up. Hope this helps someone.