Measuring trail

[outacontrol]

The mid plate is straight. drop two points straight down and draw a line as long as you want on the floor accross them, then measure back from that line.

If you really couldnt figure this out on your own you might need a bit more help than forums and stangers can provide, I would try and talk to whoever built your chassis or who you bought it from.


The problem with forums and asking questions is you get a lot of stupid answers or at least answers that are not really very helpfull to week thru. lots of guys arent as smart as they think.

I know how to set the trail in my own car. I've never understood why anyone would need to use the mid plate, it's not the only thing square in a modified. The upper bar behind the seat is, and it's much closer to the rearend. It was just a question, I didn't need a smart assed remark.

[johnny v]

I know how to set the trail in my own car. I've never understood why anyone would need to use the mid plate, it's not the only thing square in a modified. The upper bar behind the seat is, and it's much closer to the rearend. It was just a question, I didn't need a smart assed remark.

you have to remember what the main advertising points of this forum is....." The most opinionated forum out on the net" or something like that..... he is right on some points.... you never know who is giving the info and if it is worth a crap..... use it as research guidelines and starting points..... you still have to figure it out on your own....

[Dirtrunner35]

I'm glad I use a alignment rack lol

[mudeater18]

My suggestion is if your chassis is built by a current builder, give them a quick call. They'll know the most accurate measurement method and the builder won't steer you wrong because making you faster makes them more successful.

[zeroracing]

The main upright would be difficult to measure off of, it is typically angled back, so distance varies with height, your decking may not be level, and your frame rails may not be level with each other. So where do you measure from on this bar?

To get a more accurate mid plate measure, drop plumb bombs from each side, then runa string line or laser level along this line, now drop your plumbs off the rear end, or even hub end, you can now measure to be accurate out to the very edge of the hub.

The best is to use manufactures square marks, but you can double check with a mid plate measurement. This can help you determine if the car is bent, if it should be square then both should be good.