Getrag kit

I was working with Bob Miller (Moes Performance) the past few days. We have literally discussed for hours on the phone about different options for rear ends for my Hellbitch. At one point it was looking like a Paramont Performance 9" Ford rear that would have either a Truetrac or if I wanted a Detroit Locker. As it turns out, Bob found me a Getrag kit/w/3.73 gear in it. As of right now there is only ONE more left in the country. There are zero 3.06's left and the 3.92 is way to much$. With the money I saved by not buying that bulletproof setup I also ordered the blue top noids to keep my Nag1 trans from slipping at the drag strip. I'm pissing myself over this one! lol.

Funny, even my profile likes the gear I picked, lol. Posts : 2151 (3.73% of total)
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Latest post : Fri 4 Jun - 16:14

Congrats, and yes Bob is a super kool guy. I have bought from him in the past.

tom if you need my help like last time just let me know

Great rear end you'll love the LSD. When I did mine I thought 3:73 was too steep for what I wanted. I went with the 3:06s instead (along with my 275/ 40/17 DRs) as it is I cant hook up ..LOL. I have one (actually 4) of the pinnion mount bolts you'll need just PM me and I'll send it to you.

yea that sounds like way too high a gear for a forced induction LX. you sure you want that?

jontoad wrote:

yea that sounds like way too high a gear for a forced induction LX. you sure you want that?

I wanted the locker w/ 4.10. I have to drive it on the hwy. too, not a trailor queen yet. Why do ya think it's too high?

Illinois Chaos wrote:

jontoad wrote:

yea that sounds like way too high a gear for a forced induction LX. you sure you want that?

I wanted the locker w/ 4.10. I have to drive it on the hwy. too, not a trailor queen yet. Why do ya think it's too high?

just remember its mated to a foreign trans. NAG1's are not geared anywhere near where American T-56's are. thats the reason the manual challys with the T-56 get 3.92 gears and the NAG1 SRT8's get 3.06 but have a similar final drive ratio.

3.55 is about as high as i would go on any LX that is mated to a NAG1 auto if you drive it on the street. 3.23 would be perfect for our cars if your gearing for a quarter mile on a NA car. forced induction complicates things as far as gearing is concerned in the quarter mile as closer to the stock 3.06 gear would be better i would think. i really think your just gonna have to shift an extra time and use one more gear than you have to in the quarter with a 3.73. you will also have too much gear to get traction on the street.

and to put that in perspective your talking to someone who loves more gear. i have 4.56's in my truck...

jontoad wrote:

Illinois Chaos wrote:

jontoad wrote:

yea that sounds like way too high a gear for a forced induction LX. you sure you want that?

I wanted the locker w/ 4.10. I have to drive it on the hwy. too, not a trailor queen yet. Why do ya think it's too high?

just remember its mated to a foreign trans. NAG1's are not geared anywhere near where American T-56's are. thats the reason the manual challys with the T-56 get 3.92 gears and the NAG1 SRT8's get 3.06 but have a similar final drive ratio.

3.55 is about as high as i would go on any LX that is mated to a NAG1 auto if you drive it on the street. 3.23 would be perfect for our cars if your gearing for a quarter mile on a NA car. forced induction complicates things as far as gearing is concerned in the quarter mile as closer to the stock 3.06 gear would be better i would think. i really think your just gonna have to shift an extra time and use one more gear than you have to in the quarter with a 3.73. you will also have too much gear to get traction on the street.

and to put that in perspective your talking to someone who loves more gear. i have 4.56's in my truck...

x2 .... I agree this is a lot of the thought process I went thru when deciding on my rear ends ratio.

Been doing alot of reading on gears for the Nag1. Great posts on the forums about it. In theory, if that guy knows what he is talking about, the 3.23 or 3.55 even would work best. This was based on 28" slicks in 3rd gear maxed out at the traps.

In practice, the guys that didn't buy into theory put 3.73 and 3.92, some even went 4.10. Forget 3rd now it's all about hitting the power band in 4th gear at the traps on 28's. The 3.73 should work ok. 2950 rpm at 80 mph. If I remember the 3.06 is 2600 at 80. I'll increase rpm by 400 over redline and that should compensate, almost. Hold it in 4th at the traps, if necessary.