Rear wheel and tire combo ???

[BarelyaV-8]

I've got a 1970 dodge dart with a 7 1/4 rear end. I recently converted the front to disc brakes brining it to a 4 1/2" bolt pattern. The rear is still a 4" small bolt pattern. I need help with the rear wheel and tire combo I am switching to 15" wheels to clear the front disc brake set up. What can or should I run for a 15 inch rim, width? And offset?band what tires will fit without any modifications?

The front I ordered 15" diameter 6" wide with 3.75" of back spacing. Is this correct as well?

 

[BarelyaV-8]

To clarify small bolt pattern in rear with a 7 1/4 rear end and big bolt pattern in front with disc brake conversion

 

[PA Dodger]

I had 15x7s with 4 1/4" BS and 255/60-15s on my '69 Dart. Looks like this was already answered on the M&H Racemaster thread.
I'm just curious...a 7 1/4" rear with drag radials? And two different bolt pattern sized spare tires?

 

[71DodgeDemon340]

Just get some wheel adapters to go from sbp to lbp on the rear. Have them on my demon with 15x7 rallye wheels and 275/60r15 bfg radial t/a

 

[CichliDart]

I had 15x7s with 4 1/4" BS and 255/60-15s on my '69 Dart. Looks like this was already answered on the M&H Racemaster thread. I'm just curious...a 7 1/4" rear with drag radials? And two different bolt pattern sized spare tires?

What size did you use on the front?

Mike

 

[69_340_GTS]

I had 15x7s with 4 1/4" BS and 255/60-15s on my '69 Dart.

Exactly the same here. 225/60-15. I tried 235/60-15 and they would rub somewhere all the time. So I think if you want to modify nothing, the 225 is the right size tire.

 

[Rocky_JS]

225 is the max and is close. 205 or 215's clear w/o issue. And are easier to steering if you have manual steering.
The stock 5.5x14 inch rims do clear the calipers. I wont be able to measure BS until tomorrow for you though.

 

[PA Dodger]

I'm not sure of the wheel well differences between '69 and '70 so take your chances.

69_340_GTS- Not sure if you have a typo. Mine were 255/60-15.

ChichliDart-I posted a link to my original setup. My fronts were 14".

Rocky-The 255s had about 1/2-3/4" clearance with everything stock. I have clearance pics if needed.

http://www.forabodiesonly.com/mopar/showpost.php?p=1970477246&postcount=496

 

[69_340_GTS]

I'm not sure of the wheel well differences between '69 and '70 so take your chances. 69_340_GTS- Not sure if you have a typo. Mine were 255/60-15. ChichliDart-I posted a link to my original setup. My fronts were 14". Rocky-The 255s had about 1/2-3/4" clearance with everything stock. I have clearance pics if needed. http://www.forabodiesonly.com/mopar/showpost.php?p=1970477246&postcount=496

Sorry, I misread. The biggest tire I can get on the back (or front) of my '69 Dart with basically stock suspension (just Super Stock springs in back) is a 225/60-15. I have no idea how some people (like you) fit bigger tires than that on them without modifying something.