Gear Swap Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

'89Z71 · 11-10-2003, 11:45 PM

I'd like to swap my stock 3.73 gears out for 4.56's in my '89 GMC Sierra Z71 and was wondering how hard it is to do? My truck has the IFS front so I'm assuming that its harder to work on than the SFA. I'm running 35" Super Swamper SSR's and the upgrade from 33's to 35's has made my truck a DOG in 5th gear(manual). Any and all Info is greatly appreciated.

Also I'm looking to buy a set of 4.56's for my year truck so if you have a set for sale or know someone that has a set please let me know.

TIA, DK

11-10-2003, 11:45 PM	#1
'89Z71 Registered User Join Date: Jan 2003 Location: Star Prairie WI Posts: 392	Gear Swap Questions I'd like to swap my stock 3.73 gears out for 4.56's in my '89 GMC Sierra Z71 and was wondering how hard it is to do? My truck has the IFS front so I'm assuming that its harder to work on than the SFA. I'm running 35" Super Swamper SSR's and the upgrade from 33's to 35's has made my truck a DOG in 5th gear(manual). Any and all Info is greatly appreciated. Also I'm looking to buy a set of 4.56's for my year truck so if you have a set for sale or know someone that has a set please let me know. TIA, DK __________________ '89 GMC Sierra Z71 -"Scream'n Demon" * LOUD PIPES SAVE LIVES * My Truck



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