Mini tubbing 67 Belvedere II

cjsolar · Aug 13, 2016

The shop, that is working on my car, is just about ready to start painting it (hopefully). I want them to mini-tub the rear tubs. I believe they said about 3 " on each side.
I have a pair of 275/60R15 tires with 15 x 8 rims to put on my car. I am keeping the back seat. I am curious if this is going to interfer with the exhaust system going out the rear of the car. I don't want to relocate the rear springs.
All I want to do is open up the rear fenderwells to fit the tires. The following information is:
Tire diameter is 28.06"
Section width is 10.70"
Tread width is 8.90"
The wheels are as follows:
Back spacing is 4.250
Offset is 6.00 mm
With this information does anybody think there should be any problem fitting these tires and rims to the car. Thanks for any help.

66Satellite47 · Aug 13, 2016

Just my opinion, but if you do tubs, move the springs too. Having extra room give so many options.

doublekrossd · Aug 13, 2016

I've got those tires on my stock 66 in the back. I believe my backspacing is 4.5". They fit, but it's TIGHT!

67 coronet · Aug 15, 2016

at 4.25 back space you are gonna hit bad on the outside with those tires.

67MPRFAN · Dec 29, 2017

What size tires and wheels can be fit in there after mini tubbing and spring relocation

1967coronet440 · Dec 29, 2017

Dont need to tub to fit a 275/60/15

67 coronet stock wells

66Satellite47 · Dec 29, 2017

My '66 Satellite has 325/50/15 on 10" wheel 5" back space & narrowed Dana. Springs in to frame rails, mini tubbed.

67MPRFAN · Dec 29, 2017

66Satellite47 said:
My '66 Satellite has 325/50/15 on 10" wheel 5" back space & narrowed Dana. Springs in to frame rails, mini tubbed.

Was this the widest rim you could fit and do you remember the width of the Dana
Thanks

Bigal75 · Dec 29, 2017

I'm in the process of doing this to a 67 Coronet. Car is heading to the shop shortly and I'm trying to fit 315/60 r15s without stretching the wheel opening. I'l let you know how that goes. I'l get pics as soon as we start.

66Satellite47 · Dec 29, 2017

Not so much the rim width as the overall tire section width. Looks like a 12" wide wheel will just fit with a Phoenix 11.5W x 15 slick (15.5" section width). The 325/50/15 BFG's use the 10"wheel. The guy I bought the car from says the Dana is 47 7/8" flange to flange.

BTW the 11.5W's are too tall for the stock wheelwell. would rub on the front of opening. I moved the axle back 3/4".

LemonWedge · Jan 6, 2018

It literally makes no sense to mini-tub if you don’t also move the springs. The stock spring location is tighter than the wheeltubs to begin with. The two procedures should go hand-in-hand. US Cartool makes a complete kit for mini-tubing and moving the springs.

doublekrossd · Jan 7, 2018

is the kit from us cartool a quality complete kit? I ask because I'm planning on moving springs to gain more clearance but wasn't sure if it's worth paying for a kit if a fabricator needs to re engineer it anyways

Bigal75 · Jan 7, 2018

I bought the US Cartool kit. Quality stuff in my opinion.

LemonWedge · Jan 7, 2018

I have not used it, but for years I have read and heard that US Cartool is pretty much considered the gold standard for this sort of stuff. They specialize in Mopar unibody chassis kits. I like the fact that it locates the spring-boxes off the stock bolt hole locations, so there’s almost no way you can screw up the geometry. Check them out:
http://uscartool.com/
http://store.uscartool.com/66-70-B-body-Plymouth-Mini-tub-and-Rear-Spring-Relocation-Combo_p_99.html

67MPRFAN · Mar 29, 2018

Well the car out for the transformation. I wanted to stick with 10 inch wide wheels with 29/10.5w tires but he said let's plan for 12inch wide wheels, more $$$ spent too have a rear end built

Mike67 · Mar 29, 2018

My 67 Coronet is mini tubbed , springs relocated , currently with.10" rim w/N50 ( 12.65 section width) on it and still have tons of room

Bigal75 · Mar 29, 2018

Got mine back. Mini tub with 10 inch wheels and 315/60 r15

67MPRFAN · Mar 30, 2018

Do you have the stock gas tank still in it

Bigal75 · Mar 30, 2018

It should fit but no, I have a fuel cell.

cjsolar · Mar 30, 2018

I no longer have the 67 Belvedere. I sold the car last April. The shop told me that they couldn't finish it due to lack of employees. Sold it and bought a 2016 Challenger. Still love the body style of the 67 Belvedere.

Mini tubbing 67 Belvedere II

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