88 Thunderbird LX V8 Rear End May 15, 2009, 12:59:56 AM Does the 88 Thunderbird LX V8 with digital dash (not the Sport ) come with a 7.5 or 8.8 rear end? Quote Selected
88 Thunderbird LX V8 Rear End Reply #2 – May 15, 2009, 01:11:11 AM Quote from: vinnietbird;2724207.5That's not good news, will a complete 87 MKVII rear end bolt in? Quote Selected
88 Thunderbird LX V8 Rear End Reply #3 – May 15, 2009, 11:07:38 AM a few '88 5.0 Birds had 8.8s just like the Cougars, you'll have to get under it and check.... Quote Selected
88 Thunderbird LX V8 Rear End Reply #4 – May 15, 2009, 11:39:56 AM Thanks, I've already decided not to pursue the purchase. Quote Selected
88 Thunderbird LX V8 Rear End Reply #5 – May 15, 2009, 02:38:19 PM My '88 Sport only has a 7.5 in it, however it is a traction lock unit. Go figure. Quote Selected
88 Thunderbird LX V8 Rear End Reply #6 – May 15, 2009, 10:49:43 PM If you have the vin you should be able to check the axle code. Quote Selected
88 Thunderbird LX V8 Rear End Reply #7 – May 15, 2009, 10:56:57 PM Quote from: Haystack;272575If you have the vin you should be able to check the axle code.There is not one s of info in a vehicles VIN number that pertains to axle type... That info is on the data sticker on the door jam ONLY... Even then you'll only get ratio and whether it's Traction Lock or std... You wanna know the size, gotta crawl under it... Quote Selected
88 Thunderbird LX V8 Rear End Reply #8 – May 15, 2009, 11:03:07 PM I agree with Tom....get the info from the tag on the rearend. That's the best way to do it. Quote Selected
88 Thunderbird LX V8 Rear End Reply #9 – May 15, 2009, 11:19:08 PM What they said.Check the door or crawl under and check the tag and cover shape.None of my Traction Lok or whatever they call it diffs have had a tag to identify them a such. But they do all have a tag identifying the ratio. Quote Selected
88 Thunderbird LX V8 Rear End Reply #10 – May 16, 2009, 09:44:18 AM You can also check by rotating one side (A friend of mine told me this so I'm not 100%) if the other side rotates the same direction its a trac-lok if not its an open diff. Quote Selected
88 Thunderbird LX V8 Rear End Reply #11 – May 16, 2009, 10:49:34 AM Quote from: Cat Daddy;272583.None of my Traction Lok or whatever they call it diffs have had a tag to identify them a such. But they do all have a tag identifying the ratio.All the Traction Lock rears I've seen, have on the tag 3L25 for a 3.25(or what ever the ratio)... If its a peg leg, the letter will not be there... Quote Selected
88 Thunderbird LX V8 Rear End Reply #12 – May 17, 2009, 08:20:36 AM Quote from: TurboCoupe50;272647All the Traction Lock rears I've seen, have on the tag 3L25 for a 3.25(or what ever the ratio)... If its a peg leg, the letter will not be there... You are correct!I did a little research and found out that an L in the code means locker.I believe non lockers have an S in the code. I am so used to seeing an additional tag requiring some sort of additive that I missed the letter in the tag.My bad:hick: Quote Selected
88 Thunderbird LX V8 Rear End Reply #13 – May 20, 2009, 02:19:21 AM If you are familiar with the cover of the 7.5 and an 8.8 peek under and look at the cover of the rear end and you will know. Quote Selected
88 Thunderbird LX V8 Rear End Reply #14 – May 20, 2009, 06:07:33 PM whats my car got in it? Its positive traction, 88 Sport model. Should be 8.8 correct? I havent got under it to look. (just had back surgery 2 months ago, still cant get under a car) Quote Selected
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