8" Third Member Repair

[sentipede]

8" Center Section Repair/Replace

Hello,
I have 289 A code fastback (Auto). The rear end started to howl at certain speeds, so I believe it is time to repair or replace the diffs. I figured this would be as good a time as any to modify gearing for better acceleration and add a posi. I was thinking that it may be cheaper and easier to purchase a replacement third member. The following two are links to Ebay auctions selling them. The questions are...

1) What gearing would be best suited for a daily driver with better acceleration
2) What is involved in the installation and how much would it cost to have done
3) Which of the two links look better....I am open for other suggestions

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280081332899

or

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=230089613275\

Thanks in advace!
:SNSign:

 

[geostang351]

Hello,
I have 289 A code fastback (Auto). The rear end started to howl at certain speeds, so I believe it is time to repair or replace the diffs. I figured this would be as good a time as any to modify gearing for better acceleration and add a posi. I was thinking that it may be cheaper and easier to purchase a replacement third member. The following two are links to Ebay auctions selling them. The questions are...

1) What gearing would be best suited for a daily driver with better acceleration
2) What is involved in the installation and how much would it cost to have done
3) Which of the two links look better....I am open for other suggestions

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280081332899

or

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=230089613275\

Thanks in advace!
:SNSign:

I bought mine on ebay about 2 months ago from a guy who sells rearends about once a week and he will put the gears you want into it at end of the auction. Here is my bid link so you can see who he is if you need to contact him:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&viewitem=&item=160064304055

 

[jspagna1]

Answers to your questions:
#1 If your car is a daily driver, you may want to go with the 3:25's although I have 3:55's in mine(tough on the highway).

#2 If the diff's are shipped complete, you just take the old one out and put the new one in. Should'nt take much time/labor at all.

#3 Any of these look pretty good. I know Mustangs Plus is asking $995.00