What is the fastest E.T. anyone here has run with a 7.5 10-Bolt?

 

Times below however it isn't stock. The axle tubes are welded. It has an LPW rear cover and has aftermarket 28 spline axles.

 

Stephen, I tried e-mailing you with a couple questions but, your server rejected my Hotmail address.

I wanted to ask you, at what point did you decide you need to go to a ladder bar set-up? What Torque Arm were you using?

 

Too much spam comes with a hotmail address so it's blocked by my server. Just about all the "web mail" addresses are blocked for that reason. Legitimate e-mail gets through and I even allow AOL addresses. Too much spam from a domain or ip block (ie. asia/pacific) and it gets blocked. I have many e-mail addresses and only get 2-5 pieces of junk mail a month through the filters.

I was using an early design Spohn torque arm. I used Herb Adams lower control arms and panhard bar. When I installed my 9" back in December there was no way of using the torque arm. My 9" isn't a third gen bolt-in. The only option was to try and make a torque arm mount which I probably could have done but I had a set of ladder bars practically given to me.

I feel I needed to go with the ladder bars to relieve some of the stress on the floor from the lower control arms. My car was launching so hard that the front mount on the passenger side lower control arm was starting to wrinkle the floor. You can see the rear of the tranny tunnel in one pic is wrinkled. By using ladder bars now, all the forces are transmitted to the crossmember and the sub frame connecters.

When I was using the 10 bolt and torque arm the diff had 4.10 gears and 28x9 slicks. The 9" now has 4.56 gears and I plan on going to 29x11.5 slicks. More torque multiplication and more rubber on the ground and the 10 bolt wouldn't have survived. Add in the fact that the car now has a TH400 with a transbrake. The 10 bolt really wouldn't have survived even though the torque arm system could have.

I'm hoping to be able to yank the front wheels off the ground this season but we'll just have to wait and see.

 

So, what your saying is.....you ran well into the 11's with a 7.5" 10-Bolt, Correct?


I'm planning to use a 26"-28"x 10" ET Street/Drag and 4.10 gears w/mini-spool, TH350 w/3000 stall (I'll install my 4000 if needed, later)

I do want a "Spohn torque arm" but, as this is a "Budget" build I may go with the Jegster set-up instead. It allows me to use any trans Glide to TH400.

 

Build the 10 bolt as per the "Ultimate 10 bolt buildup" and it should survive. No matter what you do though, it's still a tiny ring and pinion gear and that's what will break first.

You get what you pay for. The Jegster is an improvement over a stock torque arm but has no pinion angle adjustment. The more adjustable suspension parts you have, the more fine tuning can be done.