mikesfst69

just built a 406 with 294h cam,pro 1 heads 2:05 valves and 750 double pumper and alot other good stuff,plus want to hit with nitros so how strong is rear end hope to push 600 hp without hurting it

GTR1999

600 hp on a stock Eaton is pushing it. You can rebuild it to take the power but I wouldn't be dumping the clutch with a 30 year old stock unit.

To rebuild one for HD use you need to go with some new gears,treated 10-17 posi gears,solid clutches,steel bearing caps with 1/2 bolts,treated yokes,maybe even shoe horn a 12 bolt in there. Look for about $1,000 if you do it yourself or about $2,500 from Tom's.

Corey_68

It you want traction and want it to hold go for the Tom's set up. :cheers:

Van Steel

W/a fresh rebuild and new gears your rear should hold the 600HP. When you start jumping up another 150-200HP I would than seriously consider running the 30 spline kit. Here's a pic

Here a link http://www.vansteel.com/index.cfm?fu...&SubGroup=1878

GDaina

[QUOTE]I wouldn't be dumping the clutch with a 30 year old stock unit./QUOTE]

Your rear end will last as long as you don't dump the clutch, mine is one year older than yours, and lot more engine, rear end is just fine....

D.Cruea79454

I have a 454 with about 650hp(all motor). The rear end was the only thing that has'nt broken yet. I took it to the drag strip and broke the driveshaft and the trans, but not the rear end. I have a Tom's 12 bolt on the way that i had bought from a forum member. I thought may as well get something stronger before we brake something back there.
D.Cruea79454


[Modified by D.Cruea79454, 8:19 PM 3/17/2004]

DeenHylton

How lucky do you feel??? Do you trailer your car to the track or do you have to rely on it to get you back home?

Do yourself a favor and buy the HD parts from "Van Steel" or "Tom's Differentials"...it will save you a lot of grief.

Deen

Van Steel

D.Cruea
Are you still running your stock driveshaft and pinion yoke? You can get a 1350 pinion yoke that will be stronger. The only downfall is that you need to get a 1" shorter driveshaft. But it will hold a lot more HP.

D.Cruea79454

Van Steel,
I had a 3" drive shaft custome made withe heavy duty yoks. The 12 bolt will have a 30 pinion yoke. Now that the trans has been rebuilt and a 12 bolt rear end i am not sure what will be next... Thanks