Quote:
and allows you to run a P236x60 tire on that rim.
That's what you get if you over-inflate a P235 ? 
- Erik
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| Swapping out Rearends https://slantsix.org/forum/viewtopic.php?t=53500 |
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| Author: | Danarchy [ Thu Oct 03, 2013 8:59 am ] |
| Post subject: | Swapping out Rearends |
I stumbled on a 1975 (10' drum BBP) 7 1/4" rearend and I plan to swap it into my 1964 Dart GT. -Is it a straight swap? Leaf Spring mounts in the same place? -Is the 75 flange to flange narrower? (by a couple of inches I've read?) I would like any comments from people that have done this swap late body rearend to early A.-Thanks |
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| Author: | Reed [ Thu Oct 03, 2013 9:05 am ] |
| Post subject: | Re: Swapping out Rearends |
Quote: I stumbled on a 1975 (10' drum BBP) 7 1/4" rearend and I plan to swap it into my 1964 Dart GT.
Yes, provided your 64 already has a 7 1/4 rear axle.
-Is it a straight swap? |
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| Author: | slantzilla [ Thu Oct 03, 2013 9:14 am ] |
| Post subject: | |
IIRC, the late rear is roughly 3/4" wider per side because of the brake offset. |
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| Author: | Danarchy [ Thu Oct 03, 2013 9:40 am ] |
| Post subject: | |
Thanks Reed-Yes it is the original 7 1/4. So the 75 rearend is wider?(1 1/2" overall?) |
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| Author: | Danarchy [ Fri Oct 04, 2013 6:06 am ] |
| Post subject: | |
Quote: 3/4" wider per side because of the brake offset.
so 'Zilla is the offset the difference in the width of the drums?(1 3/4 to 2 1/2)? I am curious because I want to run same wheels/tires on all 4 corners. (I am going to swap the rearend at the same time I do the late a body front disc upgrade) Thanks, I appreciate the help.
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| Author: | DusterIdiot [ Fri Oct 04, 2013 6:16 am ] |
| Post subject: | Correct... |
Quote: so 'Zilla is the offset the difference in the width of the drums?(1 3/4 to 2 1/2)?
Yes, the late pads/drums are wider, but the rear end is narrower in the 1973-1976 years by about 3/4"http://www.mymopar.com/axledims.htm I've seen this bolt in and with "stock" style wheels (rallyes, etc...), the difference is negligible (go to aftermarket wheels and the tape measure comes out). -D.Idiot |
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| Author: | slantzilla [ Fri Oct 04, 2013 6:39 am ] |
| Post subject: | |
The width of the bearing to flange spacing is wider on the BBP axles by 3/4" or so. |
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| Author: | kesteb [ Fri Oct 04, 2013 9:51 pm ] |
| Post subject: | |
Cripes, the over all width of the axles are 56.5". The center point on the springs is 43". The distance from the front of the brake drum to the spring is 5". The FSM measures to the "center line" of the tire. The online sites measure to the brake backing plate. It doesn't matter what size of axle or brakes. The 7.25" with 9" brake out of my '65 Dart was the same width as the 8.25" axle with 10" brakes that replaced it. The standard 15x7" Mopar plain steel rim has a 3.5" back spacing and allows you to run a P236x60 tire on that rim. Which gives you 1/2" from the leaf springs and the fender well lip. It centers the tire and has plenty of clearance. |
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| Author: | mpgFanatic [ Fri Oct 04, 2013 10:47 pm ] |
| Post subject: | |
Quote: and allows you to run a P236x60 tire on that rim.
That's what you get if you over-inflate a P235 ? - Erik |
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| Author: | Danarchy [ Sat Oct 05, 2013 6:35 am ] |
| Post subject: | |
Thanks Kesteb- That's what I wanted to hear, I don't have a FSM for any Late A-Bodies, and there is a jumbled mess of information about different widths on the web. I appreciate the reply.-Dan |
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