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.
I got some Van Steel offset trailing arms and QA1 coil-overs I plan to install this winter. I have some 15" wheels and I am considering having them widened. What width and offset are you guys running with your offset arms? This is a '74 stock fenders.
I have 15x10 with an effective backset of 5 inches. Tires are MT 295 55 15 drag radials,....They do not rub, but stick out about an inch past the fender. Some might not like that. I tried to pull the tire in more, but the tire hits the frame at the T-arm pocket.
If you want it all under the fender I think you can run 9 inch wide and 4 1/2 inch backset wheels,....tires maybe 275 60, or 255 60.
I had already replaced the spring with a custom length 440 lb fiberglass spring and offset the spring bolts, so that clearance issue was out of the way. A local shop quoted me $1000 to cut and weld the frame for clearance. In my mind I would only gain 1/2 inch max tire relocation inboard, and the tires would still poke out 1/2 inch. Not worth it to me, and the fact I'd be cutting the frame in the worst possible location. I have 500 plus horse power, and to weaken the frame there was not an option I was willing to consider.
Last edited by The Money Pit; Nov 17, 2021 at 06:58 PM.
Not the exact question; I have stock trailing arms. I had my aluminum "pace car" style wheels widened to 9-1/2", the additional 1-1/2" to the inside. I used a 1/2" thick hub concentric spacer. I had a 275 tire on this combo and it tucked up under the fender nicely and cleared the trailing arm and frame. From memory I would say the frame and the trailing arm had nearly the same clearance to the tire.
My 72 has stock fenders, VB&P offset trailing arms, and 17 x 9.5 wheels with a 5.05 backspace.
They look and fit very well. The outside edges of the tires are pushed out about as far as they can go without hitting the fenders under extreme suspension travel.
Offset Trailing Arms & 15" Wheels
