After some thought, I've decided on putting 3.42 gears in my [2-wheel drive] '86 Silverado... it has the 700R trans, a 305 ci, and soon; the
3.42. Does anyone have a similar set-up, and if so what are your "likes" and "dislikes" of this combination? Thanks for any help and for your thoughts... GCYou are REALLY gonna be lugging that engine! Your final ratio is gonna be in the area of 2.40...
Probably wants mileage....
~KJ/TLGM
be in the area of 2.40...
it's gonna be gutless..............with 'normal' tires, he's going to be between 1650 and 1800 RPM in 4th with TC locked
its BAD with a 5.7, but with a 305.................
in the area of 2.40...
it's not that bad... my brother's '93 C1500 has that basic setup.. (4L60E, 305, 3.42) with his 235/75-15's it's not bad at all on the highway and he gets about 18mpg. of course, I could drop my 88 K2500 in 4 low and rip his frame in half, but that's for another day.
-Bret
I have a 1999 K1500 with a 5.7 liter and automatic transmission. The gearing is factory 3:42 and has factory P265/75 R16 tires and have no problems with lugging the engine. The 5.7 liter has plenty of torque to pull that gear.
Brian
be in the area of 2.40...
The gear now in the truck is a 2.73... it's definitely doing some major lugging. With a 3.42, I'd have slightly more first gear torque than a TH350 with a 3.73 [typical combination in older Chevy PUs]... slightly less torque in second and third... and overdrive for highway mileage. A 3.73 would have more power in third, but would turn almost too much torque in first... a 3.73 with the 700R's first gear of 3.06 would be brutal on a little ole 305ci. Wadda ya think?
That I have a 305, TH700R4, 3.73's, and can burn my 31's up.....
~KJ/TLGM
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