Can you swap a 81-84 dodge w150 power ram 3.46 rear end to a 3.55 rear end ?

 

Just the gears, or the whole rear end? If the whole thing, what year is the donor diff?

 

either and it would be a 81-84

 

If your truck is rear wheel drive, and you are using a rear diff from pretty much the same truck, it should swap right out. If you have 4x4, you need the same ratios front and rear, else putting it in 4x4 will break things. (generally, expensive things.)

 

thank you

 

im curious about swapping my rear end. i have 3.55 gears now its a 01 1500 4x4 i really want to put bigger gears cuz im limited to just four of my gears bc i am running 38x12.5s. but i dont have the money for those gears every where i have looked they are super expensive. is there any other dodges that i can look for with bigger gears that will bolt up to my truck?

 

You really want to be in the 2nd Gen Ram section......

38's on the stock axles is asking for trouble. They simply aren't designed to deal with tires that large, on a truck as heavy as the dodge. (and yes, I know, the jeep guys 'do it all the time', but, the jeep doesn't weight north of 5000 pounds either.)

The Off Road edition trucks (00-01) came stock with 4.10 gears, and reinforced axles. Finding a set will be fun though, as they seem to be rare as hens teeth. But, even then, 4.10s with 38's is still not going to be enough. You really need 4.56, or even 4.88 gears..... The alternative would be to install smaller tires...... 33's are as large as I would go with 3.55's.