Jimbo1367

Wouldn't 3:73 and a. A4s low first gear make 1st useless? I always heard w/ 4l60/70, a nice rear gear is 3:42

kwhizz

Dakota Digital has a module that plugs into the OBD plug and reads all the info from the ECM to feed the Instrument cluster........No need to add additional senders or wires....

http://www.dakotadigital.com/index.c...rod/prd752.htm

kwhizz

I told Gary to go with a 3:55..........

Project GatTagO

iTrader: (7)

A 3.42 gear is nice and they tend to be quieter than 3.73s or 3.55s....something about the number of teeth on the ring and pinion gears...or this could be internet legend...

Andrew

kwhizz

Andrew........What was that sealant you said to use on my Nomad Fuel sender gasket......Guess why I am asking............Cork + ??????? sealant should solve the problem........

Project GatTagO

iTrader: (7)

Permatex Aviation sealer. Napa should carry it.

Andrew

1989GTA

I think the diameter of the tires will also be a factory in choosing the final gear ratio. For me 3:27 was best with my 6L80 trans.

CattleAc

iTrader: (7)

I run a 3:73 gear in the LS powered A-body wagon in my sig. I thought the same thing, but, I run a 28" tire and it actually works very well. First gear is very "usable"...

I thought my mileage would suffer also...but with a LS-6 cam 5.3, I can knock down 20-23 on the highway.

I think the 3.73's will be bitchin' in that big beautiful B-body.

kwhizz

We had two issues than needed to be resolved......#1....Fuel gauge didn't work.....ended up being a solder joint that failed inside the sender (had to pull the tank down to find it)......#2....Intermittently the starter would just "Click" "Click" like the Battery was dead....Humm!!......After checking everything out......the new starter was "Junk".....replaced the starter with a new one and everything is now perfect .............Then......After removing the Dead weight in the Engine compartment.......The front end of the car was now way too high......Gary adjusted the Coil-over shocks to lower the front end down to where it was before.............anyhow.........Here's a Video of the car running.......

http://vid13.photobucket.com/albums/...y/IMG_7428.mp4

showdog75

iTrader: (8)

Not sure what it had in it for a big block but I'm curious what you and Gary think of the big block verse LS power. I've got a buddy that has a 65 Biscayne and I'm trying to talk him into a LS swap instead of a big block.

kwhizz

No Comparison.........LS all the way...........

ls1nova71

iTrader: (4)

Hmmm, didn't see that answer coming......

Jimbo1367

Taller tire. What trans are you running?

20-23 MPG......again, what trans? Even with a 4L60, thats really good with 3.73s IMO

CattleAc

iTrader: (7)

I run a 275-60-15 tire, and yes I run a 4l60e.

Again, I was a little concerned about the 3,73"s being to low, but now that I've ran them for a couple years, I'm very happy with both the mileage and the performance...