Search found 5 matches

by steve69
Wed Dec 17, 2014 12:29 pm
Forum: 10 Bolt Differential Questions
Topic: 69 Grand Prix Posi
Replies: 1
Views: 6498

69 Grand Prix Posi

Jim, I took this 10 bolt posi rear as part of a package. It is pitted, and I can't find an axle stamp anywhere. I've looked on the driver's, passenger's, top, front, rear...I was told it was out of a 69 Grand Prix. It has flattened axle tubes, I read somewhere that is correct. Why do they flatten th...
by steve69
Wed Dec 17, 2014 11:46 am
Forum: 12 Bolt Differential Questions
Topic: 12 Bolt Housing
Replies: 6
Views: 14223

Re: 12 Bolt Housing

Jim,
That was a great answer, a lot of good info. Thanks.
by steve69
Mon Dec 08, 2014 8:53 pm
Forum: 12 Bolt Differential Questions
Topic: 12 Bolt Housing
Replies: 6
Views: 14223

Re: 12 Bolt Housing

Hey Jim, Is the CCF 3.31 hard to find and worth restoring to it's proper condition? Also, I'd like to know how rare the KF 3.55 is. I'm keeping it, and putting in my 69, but I'd still like to know if it's scarce and what it's worth, if you wouldn't mind sharing that info. I've got some 10 bolt BOP q...
by steve69
Tue Nov 25, 2014 4:29 pm
Forum: 12 Bolt Differential Questions
Topic: 12 Bolt Housing
Replies: 6
Views: 14223

Re: 12 Bolt Housing

Thanks. If counted clockwise from the top right bolt being #1, the bad ones are #6, #8, #11. Can I send a pic? I have a couple more rears. Next, I went looking for internals for this rear. I found one advertised only as a 12 bolt. I went to look at it. Series 3 posi, spacer w/ Zoom 4.56 gears. Origi...
by steve69
Fri Nov 21, 2014 6:13 pm
Forum: 12 Bolt Differential Questions
Topic: 12 Bolt Housing
Replies: 6
Views: 14223

12 Bolt Housing

Hi I just bought a 1969 12 bolt housing only - with bearing caps and bolts. 3959038 NF - K 13 8 - KF 1123 B. This codes out to 1969 3.55 posi (large ring gear). The K 13 8 looks like 1968, but the housing in 1969 ( late). The whole unit has light rust, but no pitting, all the edges and casting no's....