I have an 03 suburban 1500 and im planning on putting a 6in lift with 35s. i plan to do minor offroading, nothing to crazy, but does anyone know how the axels with hold up with 35s or are they fine as they are?
03 Suburban 1500
Flowmaster 70 Series Dual Exhaust - K&N Intake - Clear Headlights
Blacked Out Taillights - 6.5" BDS Suspension Lift - 35" ProComp All Terrains
17" ProComp Wheels - Clear DRL's - White Bowtie - 15% Tints All Around


My 93 did fine with 33's and stock axles. No horsepower mods and only moderate 4wheeling. Most decent shops will not exceed sizes 3% in height difference because it can cause brake failure, so think about a brake upgrade if you are outside the safety margin. A broken axle will strand you, failed brakes can ruin your day.
There is no way to happiness....happiness is the way.
High Desert SoCal
93 K1500 burb (personal) 350 AT 3" Lift 250K+
02 Honda Civic LX
Looking for a 1990's Miata for an engine swap


If your going from stock tires to 35's in addition to brake upgrades you might want to look at new gearing, your gonna notice a power loss with those new tires.
Tim
2011 Silverado 1500 LT
2008 HHR LT
1999 Tacoma SR5 TRD 4X4
1993 Jeep Wrangler
1991 Toyota Rock Crawler
2009 Harley Davidson Nightrain
2004 Harley Davidson FLHT "Bagger"
2003 Glastron GXL Bowrider
35s should run fine on stock axles, but yeah you probably wanna up grade your differential gears. I have 35s on mine and running 4:56 gears whitch is a good balance between gas milage and power you can chose to go with a higher ratio if you plan on doing alot of towing or lower for better highway mpg.
Life's short... Drive hard!
1990 GMC Suburban 4x4 w/ jasper 355
6" Skyjacker suspension lift w/ Interco Trxus sts 36 14.5s
on Mickey Thompson classic rims, Edelbrock
intake, K&N 14 x 4 filter, JBA shortys
Magnaflow exhaust, Pioneer system with
Dual 12 inch subs... The list goes on!
with an 03 you will need to adjust for the rotation of the tires. it is an aftermarket part that adjustes your speedometor and corrects for the larger tire and or gear change. if not the anti lock brake system will give you trouble in the long run.
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