65 thunderbird axel codes manual#
65 thunderbird axel codes code#

It seems the gear ratios have nothing to do with it being a Equa-lock (Posi) though there are four codes for the 390 equa-lock, thats encouraging.Your Ford Thunderbird will be happy to know that the search for the right Axle Shaft Seal products you’ve been looking for is over! Advance Auto Parts has 10 different Axle Shaft Seal for your vehicle, ready for shipping or in-store pick up. Okay, I really need to get back to work on the tech article I'm supposed to submit for the March-April 2020 issue, or I'm going to have to pull this and use it instead.

65 thunderbird axel codes code#

The 3.20:1 ratio has no corresponding tag code in the '65-'72 MPC: it appears that the ratio may have been 3.25:1 when going through the MPC. Note that the 3.20 ratio/data plate code was found on ROTs or data plates submitted to the VTCI Registry for '64-'65 - I need to check if it's listed in the '66 T-bird Shop Manual. The list below adds ring gear diameters and axle spline counts that currently are not shown in the OFS.

65 thunderbird axel codes manual#

WEF-H Thunderbird '66ē.00ę 3/8 in NLē1Ĭorresponding with the above are data plate and axle tag codes that are listed in VTCI's 1964-1966 Original Factory Specifications Manual (don't have one yet? You need to order one). Tag Application Ratio Ring Gear NL/L # Splines/Axle For '63-'66 there are several tag codes listed in the '60-'64 'Blue Bible' and '65-'72 Ford Car Master Parts Catalog (MPC) as follows: It just so happens that I'm starting work on developing an article for the Scoop on rear axle tags/codes related to '63-up T-birds. In '66 a two-digit code began to be used, with the second character either a number (non-locking) or letter (locking).

Typically, on the data plate, a number code indicated a non-locking rear, while a letter code indicated an EquaLock. For '66 it shows at least 3 locking rears in one 9-inch and two 9-3/8' versions. JMO, Bob CĪccording to the '65-'72 Ford Car Master Parts Catalog (MPC) there was one ratio for limited-slip/EquaLock in '64 and '65.

If I recall, there was only one ratio from the factory that was limited slip.

I believe the tag on the diff will have an 'L' in the ratio designation(for locker), nothing on the door data plate.