Dial idicator for backlash setting. If you've never done one, at least have
someone with you who has...just in case. They're not that hard to swap out,
but it does require checking and rechecking the backlash.
I can tell you one thing, the 3.90's did wonders for my truck (went from 3.55)
and you will notice a decent change in acceleration from the 3.21 - 3.55 swap.
Don't forget to change the speedo gear....Dodge has a listing for the correct
gear for the 3.21, 3.55, and 3.90 gear ratios with factory size tires.
- Bernd
> Tim, I've got the V6. It was the last 97 on the lot, so
> I got a good deal on it - but unfortunately it had the
> 3.21 gears in it. At the time, I had no plans for mods
> or anything so I was fine with the 3.21's in hopes of
> better mileage. I now wish I had gotten one with at
> least 3.55's.
>
> Thanks you guys for all the info - I might call around
> and get some prices on the parts. Depending on the level
> of difficulty involved with changing out the gears, I may
> try this myself. If it's a relatively straightforward mod,
> I'm willing to give it a shot. Are there any special tools
> required for this, or can this be done with just standard
> and metric size sockets, clicker torque wrench, etc?
>
> Kevin D.
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