3.73's or 4.10's

[XLRVIII]

I totally agree... the tire size could make up for most of the difference, and the factory tach and speedo certainly are not test unit accurate!

Also agree on the last paragraph. In reality, it's a .32 difference; nothing monumental... but still a little noticeable.

We removed "measured speed" from the equation by side by side pacing on the freeway on cruise control.
Once we matched speeds is when I turned the overdrive off.

Agree'd down to the ball busting splitting of the hairs level it's not 100.000% correct base on your numbers it is about 99.68% correct (LMAO)

Sorry for the "left turn spiral spin" I sent this thread into...

 

[NateRW21]

Hey Nate, you seem to be a person that likes to "crunch numbers".

take 2000 1/4 mile passes and 3000 1/8th mile passes and tell me how many miles of WOT that is?

875 miles....

and I must say, if that engine got to 360k and did about 875 WOT miles (and we're talking acceleration miles, not top speed... which is even harder on the engine)... I'm impressed and I still stick to my guns; you got hella lucky with that engine!!

 

[NateRW21]

I wanted to "drive it til it dropped", the only thing I could see happening was it was putting ALOT of grey crap in my oil, which you and I both know is a very bad thing..it would cloud up new oil in about 600 miles.

Come on!!!! Nothin wrong with a little fine particulate metal in your oil!!! Isn't that what the filter is for?

:steering

 

[XLRVIII]

875 miles....

and I must say, if that engine got to 360k and did about 875 WOT miles (and we're talking acceleration miles, not top speed... which is even harder on the engine)... I'm impressed and I still stick to my guns; you got hella lucky with that engine!!

that was my last official count of timeslips which was two years ago.

there is probably atleast 1000 more 1/8th mile passes on the original engine before i took it out.

I figured it was somewhere close to 1000 miles of WOT.

I dont plan on changing any of my driving habits, so we'll see how lucky I can get with this motor.

So far... 30,000 Miles and about 200 passes.

 

[NYC LS8]

4.30s for a mod motor, IMO.

 

[AbrahamLincoln]

dont forget how much it costs to install the gears once you have them. its not just oh let me buy some 4.10s and boom there in. its easily a thousand dollar purchase.

 

[XLRVIII]

430's will be my next stop on the "gear gravy train". for sure!

especially after driving my friends 01 cobra w/430's.

 

[NYC LS8]

dont forget how much it costs to install the gears once you have them. its not just oh let me buy some 4.10s and boom there in. its easily a thousand dollar purchase.

You're getting ripped off if you're paying a grand to have gears installed and set-up. It's routinely done around here for half of that....and that's including a new Ford Trac-Lok.

 

[NateRW21]

You're getting ripped off if you're paying a grand to have gears installed and set-up. It's routinely done around here for half of that....and that's including a new Ford Trac-Lok.

Yeah, I saw that and my jaw dropped.... in my truck I paid about $1800 to have 4.10's front and rear, eaton e-locker in the rear and rebuilt trac-lok from the rear installed up front... that's parts and labor. Keep in mind, this was when the e-locker just came out. That locker was about $800 alone; plus two R&P sets, all the install goodies, rebuild kit for trac-lok... and of course, labor for two differentials!

If you can't have 4.10's and trac-lok installed for $600-$700 out the door, you're getting the shaft big time!

Prices from summit;
28-spline trac-lok: $219.88
Motive 4.10 R&P set: $179.95 (summit set is only $120)
Install kit (approx): $100.00

You're up to $499.83 plus labor... And I know for a fact the trac-lok can be had for cheaper.

 

[XLRVIII]

Here in houston I was just searching for someone to swap some gears into an LVC members car.

Customer supplies the parts and Labor is $200-$300.00.
Done at a ford dealership...by a well known rear end builder.

So yea.. a grand is a ripoff.

 

[AbrahamLincoln]

i paid 300 for labor, 320 for new richmond 4.10 and new traction lock (had new carrier bearings on already) shipped- 30 bucks for new axel seals and bearings, and like 50 bucks for the lube and rest of the install kit stuff

so 700 out the door - driveshaft is not a necessity but should be done if your going to have all that stuff out anwyways, and thats how much again? 450.

thats where i got the figure add the driveshaft!

best mod ever. highway - yea you can't cruise at 140 anymore... but i like my license... do you?