Has anyone ever driven a crash box 4 speed?
A833 18 spline 4 speed crash box.
- Thread starter SuperStock426
- Start date
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Professor Fate
Push the button, Max...
Yes.
SlickShifted 833 with a Mr. Gasket Vertigate shifter.
SlickShifted 833 with a Mr. Gasket Vertigate shifter.
How did it do on the street?
Yes, great in the race cars but a PITA
on the street!
on the street!
What was the problem? Downshifting, did it jump out of gear?
Professor Fate
Push the button, Max...
Rarely ran it on the street.
Like GTX JOHN said, kind of a PITA. Not something you'd want to navigate traffic with.
That's the setup I have. A Mr.Gasket V gate and a slick shifted crash box.
Hyper_pak
Old School Chrysler Fan
Have you opened the box?
If it's the every other gear ground off, you can put the brass rings back in.
If it's the every other gear ground off, you can put the brass rings back in.
Yes, every other tooth has been ground off. It's a 18 spline that an old drag racer ran in his small block 59 Corvette back in the 70s.
Inside my crash box
Professor Fate
Push the button, Max...
If it was being run behind a SBC, the input shaft would probably have been shortened to fit the Chevy. Just so you know.
There's a couple of ways to mount an A833 behind a Bowtie, but if it was done in the '70s they probably cut the input- and often turned down the diameter of the nose to fit the GM pilot bushing. You'll have to address that if that's how it was done if you want to run it on a Mopar again.
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Yes, the input shaft was shortened 1 inch...
19DART66
Well-Known Member
I drove a slick shift 3.09 first gear 833 for quite a few years on the street. Until I put a DR-4 wide gear Jerico face plated trans. in my Dart about 10 years ago. You just have to float them through the gears like a semi truck or do the double clutch shift.
Before you take your synchro trans. out go out and drive it around for a few weeks, and just use the clutch to take off with. It shouldn't take to long be for you figure out how much you have to back off the throttle to up shift smoothly, and how much throttle to give it for the down shift, with no grinding or clashing of the gears. Start out shifting at a low RPM's ( under 2000) and up the RPM's as you get use to it, It's all about road speed and RPM.
When you put the slick shifted trans in start out double clutching each gear shift and ease your self into floating the shifts with road speed and RPM.
Before you take your synchro trans. out go out and drive it around for a few weeks, and just use the clutch to take off with. It shouldn't take to long be for you figure out how much you have to back off the throttle to up shift smoothly, and how much throttle to give it for the down shift, with no grinding or clashing of the gears. Start out shifting at a low RPM's ( under 2000) and up the RPM's as you get use to it, It's all about road speed and RPM.
When you put the slick shifted trans in start out double clutching each gear shift and ease your self into floating the shifts with road speed and RPM.
I've been a truck driver for 30 years so I believe I could do that without a problem.
I've had several four speeds but never a crash box before.
My Demon is a automatic. It has a 727 race prepped transmission. I'm converting it over to a 4 speed. I have the transmission, my old Mr. Gasket V gate inline shifter that I purchased back in the 80's.I've had lightning rods made for it. I have my old Lakewood blow proof bellhousing. I still need to buy my pedal assembly, flywheel, clutch and pressure plate. I'm looking at going to a hydraulic clutch.
19DART66
Well-Known Member
I was too before I retired, So from one truck driver to another, you got this, no problem. Good Luck with your new found friend at the track, your going to love how fast that slick shifted trans shifts. Just do your self a favor and spend the money for the right clutch(slipper clutch) or you will be chasing broken drive line parts, spend a little more now save a lot later.
Some were home made by cutting teeth. Here are pics of the bought gears.
I have 4 here and you can see the end one with the rods was cut for a GM.
Driving them on the street was like driving my 53 Chevy with no syncros. If your not pulling a gear flat out you need to double clutch on the up shift and give a burp of the throttle to down shift.
Face plating is much better they shift like a motor cycle. Friendlier on the street.
I have 4 here and you can see the end one with the rods was cut for a GM.
Driving them on the street was like driving my 53 Chevy with no syncros. If your not pulling a gear flat out you need to double clutch on the up shift and give a burp of the throttle to down shift.
Face plating is much better they shift like a motor cycle. Friendlier on the street.
19DART66
Well-Known Member
I am not a fan of hydraulic clutches, especially with a soft lock clutch, mechanical linkage has more feel and can be adjusted easier for the air gap between the clutch disc and pressure plate, and the most important thing of all reaction time at the line.
P.S. I use an old Hurst Ram Rod shifter with a couple of mods.
P.S. I use an old Hurst Ram Rod shifter with a couple of mods.
Does McLeod make a slipper clutch?
Thanks old man . I've seen where face plating was offered by Liberty or Brewers. I can't remember which one, maybe both do.
I believe face plating would be a definite advantage and a little more street friendly.
I've never driven a hydraulic clutch before. The 4 speeds I've had have all been mechanical linkage. I'll probably stick with linkage then. My 71 Demon has a Indy headed 440 with 2 inch TTI's.. I was reading on TTI's website and found I'd need a modified Z bar. They offer a modified Z bar that'll work with their headers.
19DART66
Well-Known Member
Yes, McLeod makes the Soft Loc clutch, that's what I use. I run a single 10 inch sinter iron disc , aluminum flywheel, and the full adjustable pressure plate with an aluminum pressure ring and steel hat.
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19DART66
Well-Known Member
Beautiful Demon, always wanted one, but I have had my 66 Dart for 26 years now and really can see replacing it after all these years, It's been a faithful friend for what I have put it through.
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