Pinto axle...

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Sep 25, 2005 | 05:30 PM

1970Custom

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From: Middleton, ID

Pinto axle...

...What other vehicles used this rear end? Isn't it a 7.5"?

Do any companies offer five lug and disk brakes for it?

Thanks,
Eric

Sep 26, 2005 | 01:06 AM

85e150

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Might be a 7.

A switch to an 8" would better serve any performance upgrade. Stainless Steel Brakes might make a kit for the 8.

Sep 26, 2005 | 11:39 PM

1970Custom

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From: Middleton, ID

One other thing, is this a stout piece? I'm thinking of putting it under my rx7 and want to make sure before I get too far into it.

Sep 27, 2005 | 07:03 AM

rebocardo

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From: Atlanta GA

I have seen Mavericks with disc brakes in the back, that might be a better choice. If you are thinking about something narrow for an RX-7 I do not see why you do not use an 80s Ranger axle. Much more support for that including lockers and limited slips.

Sep 27, 2005 | 05:33 PM

1970Custom

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From: Middleton, ID

This already has a full spool in it with 3.55 gears. Just wondering about strength as I'm going to be building a high power 1.1 or 1.3.

Sep 28, 2005 | 12:52 AM

85e150

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I had an 8" open diff in a Mustang with a 289 and manual trans. 3.0 gears and it held up after I broke the 2.79s.

Go here for 8" goodies:

http://www.davidkeetoploaders.com/thirdmembers.htm

scroll down for the 8's

http://www.currieenterprises.com/cestore/8inford.aspx

An 8.8 from a later Ranger or Exploder, if it will fit, might also be considered.

Sep 28, 2005 | 01:02 AM

ford390gashog

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From: Brentwood,CA

no i think you need at least a D70 under there and some 4.10 gears. J/K

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Sep 28, 2005 | 10:58 PM

go_racing84

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From: Roseburg, OR

If it's related to the 7.5" they used in Mustangs and Thunderbirds in the '90s, it's not that stout at all.

Sep 29, 2005 | 06:03 AM

#10

snyiper

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From: southern Md

The turbo t-bird rear seemed to hold up well to the power they made. I would also say look at a Maverick Grabber rear. or perhaps a 70s shelby cobra rear (hopped up mustang 2).

Sep 29, 2005 | 12:05 PM

#11

rebocardo

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From: Atlanta GA

When I said Ranger/Bronco I meant the 7.5 rear end. It should hold up fine and depending where you live you can buy them from $25 to $100 because, generally, people do not want them. It is probably good for 200 horsepower.

Sep 30, 2005 | 05:09 PM

#12

85e150

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Quote:

Originally Posted by snyiper

The turbo t-bird rear seemed to hold up well to the power they made. I would also say look at a Maverick Grabber rear. or perhaps a 70s shelby cobra rear (hopped up mustang 2).

Turbo T bird should be an 8.8, shouldn't it?

The Maverick and Mustang 2 would be 8" diffs.

Oct 1, 2005 | 12:59 PM

#13

FLgargoyle

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From: Travelers Rest SC

I doubt you'd tear it up; Wankel (rotary) engines aren't known for a lot of torque, and you're talking a light car. Of course, the bigger the better!

Oct 1, 2005 | 01:15 PM

#14

go_racing84

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From: Roseburg, OR

FLgargoyle makes a point. What kills a differential is shock load from a high-traction launch, or otherwise. As long as you're not running large drag slicks and launching at 9k, a reconditioned 7.5 will probably last for a while.