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Can I swap '73 7.25 BBP axles into a '74 SBP 7.25?
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Author:  Valianator [ Thu Jan 19, 2006 7:39 pm ]
Post subject:  Can I swap '73 7.25 BBP axles into a '74 SBP 7.25?
Here's the situation: I've got a BBP 7.25 rear end from a '73 318 Dart.

My '65 Valiant has a SBP 7.25 rear end from a '74 Scamp in it.

Can I just swap the axles/brake assemblies from the BBP rear to the rear that's already in the Val? That would be easier than swapping out the whole rear end assembly, and I know the rear that's there now is nice'n'quiet.

Thanks!
Author:  Slant Cecil [ Thu Jan 19, 2006 7:53 pm ]
Post subject: 
No, brakes are entirely different.
Author:  Valianator [ Thu Jan 19, 2006 8:17 pm ]
Post subject: 
Quote:
brakes are entirely different.
I know. I was thinking of the swapping the entire brake assemblies- backing plates and all. Will it work if I do that, or is something else different?
Author:  slantzilla [ Fri Jan 20, 2006 5:10 am ]
Post subject: 
No. The axle tube ends are completely different. The bearings on the axles are different too. SBP axles/ brakes have 4 mounting holes in the backing plates. BBP axles/brakes have 5. :shock:
Author:  VDART [ Fri Jan 20, 2006 5:35 am ]
Post subject: 
swamp the whole assy-- remove the leafs & rear as an assy-- roll it out & roll it in the 65 -- remove some lines first & your done!!!!!
Author:  Valianator [ Fri Jan 20, 2006 9:58 am ]
Post subject: 
Quote:
axle tube ends are completely different.
Got it. Will swap the whole assembly.

Thanks, fellas!
Author:  dakight [ Thu Jan 25, 2007 7:35 pm ]
Post subject: 
OK, this brings up another question. Can a carrier assembly and ring & pinion from a SBP 7.25 be swapped into an LBP housing and axles?
Author:  Pierre [ Thu Jan 25, 2007 8:10 pm ]
Post subject: 
I would assume so - www.ringpinion.com doesn't differentiate years.
Author:  sandy in BC [ Fri Jan 26, 2007 7:03 am ]
Post subject: 
I swapped my 65 sbp 3.23 gears into my 75 bbp assembly with no issues. It took mebbe 2 hours and required no special tools but I had to be innovative with drifts and 1/2"drive extensions.
Author:  dakight [ Fri Jan 26, 2007 7:45 am ]
Post subject: 
I guess the specific question is will a Sure Grip from an early A - say a 65 Dart, fit properly into a LBP 7.25? If the gears won't fit it's a deal breaker but if the sure grip fits it's icing on the cake.
Author:  Greg Ondayko [ Fri Jan 26, 2007 4:04 pm ]
Post subject: 
A Quick Answer to Valiantor' S question:


No, The Axle tubes are different and the Axles are different.

THe early type has No C Clips. The Later type does; Bearings are different
too.
To accomplish What you are trying to do Swap the entire Housing and Axle assembly.

Greg
Author:  sixinthehead [ Fri Jan 26, 2007 6:24 pm ]
Post subject: 
Only the housing ends changed to accomodate the big bearings. I have a 65 SG unit in a 75 lbp housing in my car. Carriers and gears all swap although I can't vouch for the real early ones. I have never yet seen a 7 1/4 with c-clips.
Author:  dakight [ Fri Jan 26, 2007 7:14 pm ]
Post subject: 
Thanks. That's what I suspected but it's nice to have some confirmation.
Author:  Greg Ondayko [ Sun Jan 28, 2007 6:52 am ]
Post subject: 
Sorry About the BAd info,


I must have confused the Later 7.25's with the 8.25's

Greg
Author:  dakight [ Sun Jan 28, 2007 7:46 am ]
Post subject: 
Well, the 8.25 would be more desireable but the 7.25 in question is essentially free. The sure grip is available at reasonable cost and I already have the 3.23 gears. I will be able to put the rear axle together for very nominal cost and since I am unlikely to seriously stress it I don't anticipate any serious problems with it. If it fails then I'll address the issue at that time.
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