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Hello, I have a Rockwell Differential with a Model number b1 3200s1865 Serial AVC96058249 I'm taking a wild guess that this is NOT a SQHD?? lol

Are the big Mod diesels and N/A mods still using Detroit Lockers in the front of their trucks or have they all moved to a slipping axle locker like TRB sells? Do the Detroit lockers start acting up after a certain amount of power? Thanks, Doug

This might not be a diesel but it certainly would be a good buy for someone! 650ci 5” Goodwin Hemi 38,500$ -Donovan Cast 5inch Bore Space Block (Gm Bell housing Bolt pattern) -Hemi 99 5” Cast Heads. Ported and worked on by Goodwin Performance -Isky Keyway Lifters -Diamond Pistons -60mm...

So we all know you lose horsepower running through an automatic transmission compared to a Clutch. But with the newest ATI lock up style transmissions I am wondering how much power is lost through one of these? Is it more/less/ or about the same as a standard converter style transmission? I am...

Well we started this year on the right foot! We were in Casselman Ontario for a two day hook. 11 trucks showed up and we ended up with a 3rd and 2nd place! We are very happy with that! Especially with the bad luck we had last season. The first day we came on to it a bit too slow and maybe could...

Took apart my SQHD this weekend and noticed a pretty interesting wear pattern on the Ring. (This R/P only has around 10-12 runs on it) It is ROUGH from top to bottom. NO smooth part on the Drive side at all. Sharp edge at the top and bottom of the ring. Also the bottom is chipping away. Even...

What are people using to lock up their front rockwell 106's. Last season I was using a Detroit locker but one spring went bad in it and it took me 3 pulls to figure out one wheel was unlocking once and awhile going down the track. I was told one a person gets past the 1200hp range the detroits...

I know its not a diesel but i'm sure this will still get some of you guys blood flowing! First off huge thanks to Goodwin Competition!! Great to work with and when I went to their shop I was treated beyond nice!! It was like the whole shop knew who I was already and was excited to see me off...

With all the talk of 106's and different weights lately I went out and weighed up my stock 106 i just took out of my puller. Everything is stock. no brake set up Axle : 60 (30 each) Hubs : 60 (30 each) 5 stud hubs. 6 stud hubs weighed 40 each Pig :160 (with R/P)...

Good Day My father has been pulling for the last 30 years and I have been around it ever since i was born (25 years ago) It has only been in the last 6-7 years we have moved up into a NTPA caliber Mod 4x4 class. We pull out a fairly large club in Quebec Canada. We have about 10-12 trucks at...