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  • 1965 - 1973 Classic Mustangs -General/Talk-

Rear end '68

  • Thread starter Thread starter CrisNavarro
  • Start date Start date Jul 15, 2020
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Olivethefet

I will own your nuts! LOL
5 Year Member
May 17, 2018
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Enterprise AL
Jul 17, 2020
#21
  • Jul 17, 2020
  • #21
@CrisNavarro how easy is it for you to search for info on this from Spain? I dont mind posting some links to other forums and sites here that are talking about this swap, but I dont want to clutter up your thread with info you can find yourself.
 
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CrisNavarro

Active Member
Apr 29, 2020
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Spain
Jul 17, 2020
#22
  • Jul 17, 2020
  • #22
wicked93gs said:
I haven't put any 8.8s in a vintage mustang...but on my last '66 I did actually have a 7.5" with rear disc from a Mark VII if I remember correctly? The 7.5 and 8.8 in the fox were the same width...you can fit a 8.8" from a foxbody in a vintage mustang, but the wheel offset will change(more dramatically for 65-66 than for 67-68) so if you do so...you may be forced to use later model wheels(which also means you will need spacers to use them on the front). One way around it is to shorten the 8.8", but then you get into custom length axles, etc. It really depends on what you need as far as strength goes and what wheels you are wanting to use with it. The best axle choice is going to vary from build to build. That being said...the 8.8" is an excellent choice if you need something that comes with factory LSD and rear disc brakes...but it will require work to properly fit a vintage mustang. The 8.8" you choose needs to be thoroughly researched as well.(If I were to do the swap myself, I would choose an 8.8" from an explorer, shortened on the passenger side, and using 2 driver's side axles, then run whatever spacers were required to correct the wheel offset....its the most well-known way to do it...but there are plenty of other ways. The best unit you could start with for example would be a 2014 Mustang GT 8.8"....since its new and easy to find, the clutch packs would be in good condition...the downside being that custom length axles would be required(pretty sure the explorer axles inner spline isnt the same as the late model mustang, but I could be wrong on that).

That being said, there are plenty of others out there that would be able to give you better details than me on the swap.
Click to expand...
Thank you so much. I need to check all the options.
The idea is 347 stroker + T5 manual gearbok + 8.8" posi with disc brake + 15x8" Cragar 245 back 225 front or VN407 17"
But I didn't know about the length of the axle, I don't like the spacers...
 

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
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Jul 17, 2020
#23
  • Jul 17, 2020
  • #23
"Looking for the best combination 347 + gearbox + rear end. Suggestions?? " - CrisNavarro


Dream combo for daily driver street use - 347, G force WC T5, nine inch with worm gear posi and 3.25

This stuff would bolt in but might be hard to come by (read expensive) in Spain. Which is why it got a dana in the first place I imagine.

8.8 would be nice but not a bolt in because width and yoke style.

Bet you don't see many old mustangs driving around in Spain, fun to be different.
 
C

CrisNavarro

Active Member
Apr 29, 2020
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Spain
Jul 17, 2020
#24
  • Jul 17, 2020
  • #24
Olivethefet said:
@CrisNavarro how easy is it for you to search for info on this from Spain? I dont mind posting some links to other forums and sites here that are talking about this swap, but I dont want to clutter up your thread with info you can find yourself.
Click to expand...
I am from Spain, but I am working in Mexico at the moment.
Do you mean will be better to look for the info in the others threads?
Sorry I have not a lot of experience with forums.
 

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
4,430
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Oahu
Jul 17, 2020
#25
  • Jul 17, 2020
  • #25
We need more pictures of your car.
In progress is fine
 
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CrisNavarro

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Apr 29, 2020
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Jul 17, 2020
#26
  • Jul 17, 2020
  • #26
2Blue2 said:
"Looking for the best combination 347 + gearbox + rear end. Suggestions?? " - CrisNavarro


Dream combo for daily driver street use - 347, G force WC T5, nine inch with worm gear posi and 3.25

This stuff would bolt in but might be hard to come by (read expensive) in Spain. Which is why it got a dana in the first place I imagine.

8.8 would be nice but not a bolt in because width and yoke style.

Bet you don't see many old mustangs driving around in Spain, fun to be different.
Click to expand...
Will be great to get this Combo!
8.8" posi + disc brakes around 200 USD in Mexico!
The idea is to send this Mustang to Spain in the end of the year, is really complicated to find Mustang like that...
 

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
4,430
2,893
163
Oahu
Jul 17, 2020
#27
  • Jul 17, 2020
  • #27
You'll be a hero if you bring home a Mustang hot rod!
 

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
4,430
2,893
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Oahu
Jul 17, 2020
#28
  • Jul 17, 2020
  • #28
Does it have to be converted right hand drive?
 
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CrisNavarro

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Apr 29, 2020
107
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Jul 17, 2020
#29
  • Jul 17, 2020
  • #29
2Blue2 said:
We need more pictures of your car.
In progress is fine
Click to expand...
Here they are:
 
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CrisNavarro

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Apr 29, 2020
107
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Spain
Jul 17, 2020
#30
  • Jul 17, 2020
  • #30
2Blue2 said:
You'll be a hero if you bring home a Mustang hot rod!
Click to expand...
Is really difficult to find cars like that...
 
C

CrisNavarro

Active Member
Apr 29, 2020
107
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Spain
Jul 17, 2020
#31
  • Jul 17, 2020
  • #31
2Blue2 said:
Does it have to be converted right hand drive?
Click to expand...
You mean in Spain? Is left side"!
 

Olivethefet

I will own your nuts! LOL
5 Year Member
May 17, 2018
2,596
1,790
143
Enterprise AL
Jul 17, 2020
#32
  • Jul 17, 2020
  • #32
I dont know how easy it is for you to search for information on a car that isnt really in your country of origin.

If I search for stuff things here in the states stuff from Spain doesn't come up. So if it is easier for me to search for stuff here in the states where that car is everywhere and post it here I can. If you are able to do simple searches to find info on your own I'm not going to post a bunch of stuff here.

Trying to be helpful IF you need it is all.
 
C

CrisNavarro

Active Member
Apr 29, 2020
107
14
28
Spain
Jul 18, 2020
#33
  • Jul 18, 2020
  • #33
Olivethefet said:
I dont know how easy it is for you to search for information on a car that isnt really in your country of origin.

If I search for stuff things here in the states stuff from Spain doesn't come up. So if it is easier for me to search for stuff here in the states where that car is everywhere and post it here I can. If you are able to do simple searches to find info on your own I'm not going to post a bunch of stuff here.

Trying to be helpful IF you need it is all.
Click to expand...
In Spain will be really really dificult, here in Mexico is more easy.
I will appreciate everything you post
I am a beginner Mustang owner...
 
C

CrisNavarro

Active Member
Apr 29, 2020
107
14
28
Spain
Jul 20, 2020
#34
  • Jul 20, 2020
  • #34
wicked93gs said:
I haven't put any 8.8s in a vintage mustang...but on my last '66 I did actually have a 7.5" with rear disc from a Mark VII if I remember correctly? The 7.5 and 8.8 in the fox were the same width...you can fit a 8.8" from a foxbody in a vintage mustang, but the wheel offset will change(more dramatically for 65-66 than for 67-68) so if you do so...you may be forced to use later model wheels(which also means you will need spacers to use them on the front). One way around it is to shorten the 8.8", but then you get into custom length axles, etc. It really depends on what you need as far as strength goes and what wheels you are wanting to use with it. The best axle choice is going to vary from build to build. That being said...the 8.8" is an excellent choice if you need something that comes with factory LSD and rear disc brakes...but it will require work to properly fit a vintage mustang. The 8.8" you choose needs to be thoroughly researched as well.(If I were to do the swap myself, I would choose an 8.8" from an explorer, shortened on the passenger side, and using 2 driver's side axles, then run whatever spacers were required to correct the wheel offset....its the most well-known way to do it...but there are plenty of other ways. The best unit you could start with for example would be a 2014 Mustang GT 8.8"....since its new and easy to find, the clutch packs would be in good condition...the downside being that custom length axles would be required(pretty sure the explorer axles inner spline isnt the same as the late model mustang, but I could be wrong on that).

That being said, there are plenty of others out there that would be able to give you better details than me on the swap.
Click to expand...
The owner told that is from explorer, no from fox, he write it wrong. There is a number code or something like that to differenciate a explorer version from mustang fox? Price was around 200 usd with 3.25 (or something like this), but he give me the oportunity to get the upgrade 3.73 for 200 usd extra, I decided 3.73 + T5 manual + transmision cardan.
 
C

CrisNavarro

Active Member
Apr 29, 2020
107
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Spain
Jul 21, 2020
#35
  • Jul 21, 2020
  • #35
@wicked93gs Do you know how to differenciate the foxx 8.8 rar end from the explorer 8.8 rear end? Some numbre codes? TIA
 

wicked93gs

15 Year Member
Sep 30, 2006
1,198
228
93
Nashville TN
Jul 22, 2020
#36
  • Jul 22, 2020
  • #36
easy way to tell...an explorer 8.8 often has disc brakes and 5 lug, aside from the 93 Cobra, I believe all fox 8.8s had 4 lug and rear drums(though of course they can be changed to 5 lugs with the correct axles and rear discs) Also, the carrier is offset on an explorer rear end....the one axle is longer than the other(which is why shortening them people often use 2 of the shorter side axles)
 
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CrisNavarro

Active Member
Apr 29, 2020
107
14
28
Spain
Jul 23, 2020
#37
  • Jul 23, 2020
  • #37
wicked93gs said:
easy way to tell...an explorer 8.8 often has disc brakes and 5 lug, aside from the 93 Cobra, I believe all fox 8.8s had 4 lug and rear drums(though of course they can be changed to 5 lugs with the correct axles and rear discs) Also, the carrier is offset on an explorer rear end....the one axle is longer than the other(which is why shortening them people often use 2 of the shorter side axles)
Click to expand...
Thank you! I will check it!
 
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CrisNavarro

Active Member
Apr 29, 2020
107
14
28
Spain
Jul 25, 2020
#38
  • Jul 25, 2020
  • #38
And finally I got my new gifts...
Rear end 8.8 Mountaineer posi + 3.73
Tremec T5 Mustang '95
Cardan Mustang '95
Thank you everybody for your help!
 
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CrisNavarro

Active Member
Apr 29, 2020
107
14
28
Spain
Jul 27, 2020
#39
  • Jul 27, 2020
  • #39
Hi! Somebody knows wath kind of oil to use for differential an gearbox?
The seller told me to use automatic gearbox oil (Dexron III), because the manual gearbox oil it doesn't work properly.
TIA.
 
Last edited: Jul 28, 2020

Olivethefet

I will own your nuts! LOL
5 Year Member
May 17, 2018
2,596
1,790
143
Enterprise AL
Aug 7, 2020
#40
  • Aug 7, 2020
  • #40
That t5 uses automatic transmission fluid. I forget what goes in the rear end. 75-140?
 
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