Denali Dude

I went from a 60e to an 80e I have 3.73 gears I want to chenge them I used to have a 3600stall on my 6oe now I have the 80e stock converter dont want to mess with the converter thing.

Im stuck choosing between the 4.30 and the 4.56 I race alot and dont offroad that much maybe twice a month with stock tire size so Which 1 do I go with my truck is a 4wd

Breeze

iTrader: (16)

Dude what size tire's do you have?

Denali Dude

Stock one I dont know since my car is inthe dealer for service

Breeze

iTrader: (16)

I wouldnt go more then 4.30s if any one even makes them for our 8.6 rear. Check out Randy's ring and pinion I love my Yukon gears I got from them.

hog

Also remember that the 80e has a shorter .75:1 OD ratio vs. the 60e's .70:1.

You live in Dubai(withthose long straight highways) and I remeber you wanted to preserve you top end speed.

You dont want to cruise at too high of an rpm either.

Your truck must seem like a diog from going to a 3600sst 3.06 1st gear to a stock TC 2.48:1 1st gear.

I would get a nice torque converter to get your low speed accelaration back.

If I knew your tire height I would have run some numbers for you.

peace
Hog

nighthawk08

stock NNBS 4x4 tires are 265/70/17

hog

Plugging that tire size in to Tunercats 2 I get 30.69".

2621@70mph, 3744@100mph(160kph) 5616rpm@150mph(240kph) with 4.56
2472@70mph 3531@100mph(160kph) 5396rpm@150(240kph)with 4.30's
2357@70mph, 3367@100(160kph), 5050 rpm@150mph(240kph) with 4.10's
2242@70mph, 3202@100mph(160kph), 4804rpm@150(240kph)with 3.90's
2144@70mph,3063rpm@100mph(160kph), 4594@150mph(240kph)with 3.73's

peace
Hog

Denali Dude

I wont go more than 160kph cruising but when racing I hit 200 and stop so I guess 4.30 or 4.56 is enough for me