Does anyone know of a company that makes a exhaust brake kit for 93 F700 with 5.9 Cummins,

 

Your going to need an Inline mount exhaust brake with 60# exhaust valve springs. If the truck is a standard Transmission it won't be an issue. However if it is an Auto I'll need to know what trans is in it, to say if it will be of any use to you.

Regards,

Hector

 

It is an Allision believe its an MT653

 

Unfortunately that trans according to allison may or may not have Lock-up during deceration, the retarding your going to get even with the HD valve springs will be min at best, If it doe's not lock up during deceleration I'd personally save my money.

If you Do have lock up during deceleration and a 4" exhaust, the exhaust brake kit number you will need is 1027158 with springs of a part number 1030060.

see page 3
http://www.allisontransmission.com/s...t=OM1334EN.pdf

Also see page 18, I found that to be helpfull.

I hope this helps you out, and feel free to contact me for any further infomation or any of our dealers for pricing. I'm always here to help.

Regards,
Hector