• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

USCT Level 2 Stiffening Kit - What modifications must be made?

NHRoadrunner

Well-Known Member
Local time
3:38 PM
Joined
Nov 3, 2024
Messages
119
Reaction score
70
Location
New Hampshire
Having the level 2 kit from US Car Tools installed on a 1969 Plymouth RR. I know these need some minor modifications:
1. Add holes for parking brake cable on subframe connector.
2. Lengthen notches for fuel lines on subframe connectors.

What other modifications must be made that are not the two items above? Will everything else clear the new parts being added?
 
They don't fit the floors as well as one is led to believe so you'll be pushing down on the floors to weld them in place. I seem to recall some small tabs at the front that I ground off
 
I didn’t weld mine in, but not aware of anything other than the E Brake cable.

B7417036-D7F8-4AF5-87B3-DF7EF88CF9F0.png
 
They’re useless if they’re not welded in!!
Mine are welded in, but not by me personally. Welded by Joe Sanderson may he RIP. He got a nasty rash from grinding off the undercoating. Asbestos. Ended up in ER.
 
On the last car I did and added USCT stuff, I called and talked to, I think, the owner. What was interesting is he said they had done extensive testing on body flex before and after installing their products on a B body. Frame connectors and torque boxes made the biggest difference, inner fender braces made a little difference, radiator support not much at all. One thing that he told me that did also help tremendously was to weld solid the lower firewall to front floor pan joint, and I followed his advice on that.
 
I put the frame connectors on my '62.. i spent may a hour to 90 mins per side marking and grinding to make them fit the floor as good as possible before welding. I work on my back on the floor though.. with a lift it would be much faster. I used a floor jack to hold them tight against the floor when welding.

P.S. my car on jackstands before the connectors (for months) i couldn't open the doors... with connectors it stays about perfect.. The 62s are tin cans though
 
On the last car I did and added USCT stuff, I called and talked to, I think, the owner. What was interesting is he said they had done extensive testing on body flex before and after installing their products on a B body. Frame connectors and torque boxes made the biggest difference, inner fender braces made a little difference, radiator support not much at all. One thing that he told me that did also help tremendously was to weld solid the lower firewall to front floor pan joint, and I followed his advice on that.
Years back the "highly regarded" XV operation (soon closed but with reinvented current version?) highly promoted radiator support upgrades for Mopars, without documentation.

I say "buyer beware", but if reinforced LCA, mixing torque boxes and 3 sided varying cross sectional frame connectors on a non-convertible, and upgrading TR from 9/16" to 11/16" is your thing all because a vendor makes a claim and "everybody" else is doing it, have at it.
Never been able to square why 60+ year old Mopars need a 11/16" TR upgrade while a very modern OEM stock Detroit iron 600+ HP car that weighs 3600lbs, corners at 1+ G with factory installed on the wide side tires that stops from 60-0 in 97' is delivered with "puny"? 14mm TR.
 
Last edited:
In this context:
"KV" don't know, it's proprietary?
"LCA" lower control arm
"TR" tie rod
"G" acceleration force of gravity 32'/sec/sec
"HP" horsepower
"lbs" imperial pounds
"OEM" Original Equipment manufacturer
"mm" millimeter
"B body" Mopar chassis style Nomenclature that first became public/mainstream around 1964 and was then slowly backdated to similar cars built in 1962
:thumbsup:
 
Last edited:
In this context:
"KV" don't know, it's proprietary?
"LCA" lower control arm
"TR" tie rod
"G" acceleration force of gravity 32'/sec/sec
"HP" horsepower
"lbs" imperial pounds
"OEM" Original Equipment manufacturer
"mm" millimeter
"B body" Mopar chassis style Nomenclature that first became public/mainstream around 1964 and was then slowly backdated to similar cars built in 1962
:thumbsup:


Thanks- TR was hanging me up
 
Back
Top