8 1/4 center section question.

[Mick Semantel]

I'm looking at a 8 1/4 limited slip 3rd member out of a 79 Diplomat. It's for my 8 1/4 rear end in my 75 Dart. any ideas?

 

[67dartgt]

I have a 8 1/4 suregrip in my 67 dart gt w/ a 360. It's got a 3.21 but, I love it! If your not putting a Big block in it, go for it!

-67dartgt

 

[Mick Semantel]

I have a 360 w/ a 904 currently. I am also driving around with the original 7 1/4 rear with 273 gears. The 8 1/4 that I will be replacing currently has 245 gears. I was told that I had to get a new 3rd member to do the gear change. I found a guy selling a 3rd member out of the Diplomat with 293 gears. I was wondering if there was a differance between a 79 8 1/4 to 75 8 1/4.

 

[sublimeswinger]

I didnt know a 8 1/4 had a 3rd member. Do you mean an 8 3/4? Or am i incorrect in what they are called:read2:

 

[Mick Semantel]

Good question, I'm pretty sure that all rear ends have 3rd members. I'm going to call this guy in regards to it.

 

[Mick Semantel]

Just got off the phone with the guy, all it needs is new bearings. The limited slip and gears look good. All for $70.00. I'm going to pick it up next week.

 

[superdart]

Sublimeswinger is implying that the 8.25 doesn't have a removable center chunk like an 8.75, which is technically the "3rd member".

As far as I have been able to research, all 8.25" carriers are interchangeable, up until 1997, when they changed to a 29 spline pattern.

The only exception is that your 2.45 carrier is a lerger diameter to accomodate the ultra big ring gear. I have the same prob, but I am upgrading to the 29 spline from a 2004 Dakota. The only catch is that I am having Moser cut me a new set of axles with the right spline.