rear shocks and control arms

sweet03cobra

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Dec 27, 2004

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Anchorage, Alaska

Apr 27, 2005

#1

• Apr 27, 2005

• #1

I just bought a notch that someone already replace the rear end to a 8.8 I think. How do I tell for sure, how many bolts are on the dif for a 7.5 and how many for a 8.8. Plus the shocks are all rusted and ****, the shocks for the 4 and 8 cyl were all the same right? Plus if it does have the 8.8 then I would replace the stock upper and lower control arms with standard 5.0 8.8 **** right? thanks

 

stang22

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Jan 29, 2003

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Apr 27, 2005

#2

• Apr 27, 2005

• #2

What kind of car is it? What year? Is there a tag on the diff cover?

Tim

 

sweet03cobra

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Dec 27, 2004

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Apr 27, 2005

#3

• Apr 27, 2005

• #3

no tag, it is a 87 notchback 4 cly that has been converted to a carb 302 and c-4 trans.

 

ram360

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#4

• Apr 27, 2005

• #4

I'm pretty sure if you look at the 8.8 rear the sides of the diff cover are equal so It basically forms a square. The 7.5 only has 2 similar sides. But don't hold me to that b/c I'm not totally sure. BTW there are 10 bolts holding on the cover on an 8.8.

 

sweet03cobra

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Dec 27, 2004

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Apr 27, 2005

#5

• Apr 27, 2005

• #5

well it looks pretty equal sided to me, kind of square/round. Mine has 10 bolts too! I hope it is a 8.8.

 

stang22

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Apr 27, 2005

#6

• Apr 27, 2005

• #6

I thought they put 8.8's in all 87-93's, regardless of the model?

Tim

 

sweet03cobra

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Dec 27, 2004

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Apr 27, 2005

#7

• Apr 27, 2005

• #7

I thought the 4 clys had a 7.5 rearend?

 

stang22

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Apr 27, 2005

#8

• Apr 27, 2005

• #8

sweet03cobra said:

I thought the 4 clys had a 7.5 rearend?

Click to expand...

Hope this link will help you out. Good luck!

Tim

http://www.coolcats.net/tech/general/axleinfo.html

http://flemworld.com/Hto/IMAGES/R751.jpg

 

sweet03cobra

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Dec 27, 2004

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Apr 27, 2005

#9

• Apr 27, 2005

• #9

well I got screwed, I got a 7.5, now I wonder what it is going to cost me to stick a 8.8 up in there. I thought it was wierd that I didn't have quad shocks.

 

stang22

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Apr 27, 2005

#10

• Apr 27, 2005

• #10

sweet03cobra said:

well I got screwed, I got a 7.5, now I wonder what it is going to cost me to stick a 8.8 up in there. I thought it was wierd that I didn't have quad shocks.

Click to expand...

I don't think they would be very much. Call around and ask to get an idea. I have heard the Thunderbird TC 8.8 with rear disk go for about $300.00 or so, plus you get 3.55 or 3.73 gears in it. Something to think about.

Tim

 

sweet03cobra

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Apr 27, 2005

#11

• Apr 27, 2005

• #11

Alright, I will see what I can find.

 

sweet03cobra

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Apr 28, 2005

#12

• Apr 28, 2005

• #12

now will a 8.8 rear out of any 87-93 94 95 96-98 just bolt up in there? Also since I'm ordering new uppers and lowers and shocks, are those all the same. I thought it was wierd that this car didn't have quad shocks. Anyhow, I did a search but don't seem to find what I'm looking for.

 

sweet03cobra

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Apr 28, 2005

#13

• Apr 28, 2005

• #13

anyone?

 

stang22

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#14

• Apr 28, 2005

• #14

sweet03cobra said:

now will a 8.8 rear out of any 87-93 94 95 96-98 just bolt up in there? Also since I'm ordering new uppers and lowers and shocks, are those all the same. I thought it was wierd that this car didn't have quad shocks. Anyhow, I did a search but don't seem to find what I'm looking for.

Click to expand...

I don't think the 94-98's will. I can't remember if they are shorter or longer, but I am pretty sure they won't bolt right up. Any stock 87-93 rear axle should bolt right up.

Tim

 

sweet03cobra

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#15

• Apr 28, 2005

• #15

thanks, this pisses me off. I guess I have to learn sometime!

 

ram360

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Apr 28, 2005

#16

• Apr 28, 2005

• #16

I have a 95 rear in my 83 it works but they are slightly wider.

 

sweet03cobra

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Apr 28, 2005

#17

• Apr 28, 2005

• #17

so when you say slightly wider, if I'm just going to run 15x8 welds, will it effect me? Will all the control arms and shocks and crap work?

 

sweet03cobra

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Dec 27, 2004

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Apr 28, 2005

#18

• Apr 28, 2005

• #18

well it is a 7.5, I took off the differential cover and when to autozone and got a 8.8 gasket, too big. Dammit!

 

S

seijirou

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Apr 28, 2005

#19

• Apr 28, 2005

• #19

You can put any 8.8 rear in there 79-04. Use control arms for an 87 5.0, they will work on any of the rears. I don't know if the later model control arms will work, but I imagine they would too.

94-98 rears are wider than earlier years, but they will fit perfectly fine. 99+ rears are even wider still. If you go with one of those you may have problems with the outside edge of the tire rubbing the outside of the quarterpanels when the rear suspension compresses. Maier racing makes some great fender and quarter flares however

 

stang22

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Apr 28, 2005

#20

• Apr 28, 2005

• #20

I am assuming that he currently has 4-lug and doesn't want to worry about changing anything like the brake booster, wheels, etc... I guess the key words are just bolt up in there?. If he decides to use a 04 rear-end, he is going to have to make some changes.

Tim