Want Lift. But will it hold up 4L80E?

042500HD · October 6, 2004

Have you guys with lift had any problems out of your transmissions? When you lift and put bigger tires on it. I have the 4.10 gears so i wouldnt think it would bog down to bad. What do you guys think?

mmayo · October 7, 2004

With all the lifted trucks out there with no problems, I'm guessing it'd be fine. I've just about convinced myself that with our particular trucks (6.0L w/ the 4.10 rear end) we'll get better gas mileage due to the larger tires = less RPMs. At least on the highway. Can anyone else back up my guess? I've talked to a couple guys on here that have said they get better mileage & I hope its true. Maybe I'm way off, or just trying to convince myself I need a lift! What yalls thoughts on this?

GF7PE · October 7, 2004

I got better mileage with the bigger tires and westers 93

highchevy · October 7, 2004

I've got 30K on my truck and 8" lift with no troubles with the 4L80E!

042500HD · October 7, 2004

Thanks guys for the quick reply. I guess im gonna get one now.

mmayo · October 8, 2004

What kind you going with? I really should just bite the bullet and get one. Im getting kinda tired of how rough my truck is and hear the ride is much better w/ the suspension lift.

042500HD · October 8, 2004

I dont really know i might get a fabtech. What about yourself? Also do you know if anybody has had any problems from the front cv shafts for the four wheel drive breaking. Cause i want to lift and then wheel it but i dont want to be replacing cv shafts every weekend. Thanks

mmayo · October 8, 2004

If I were to get one I'd get RCD or, if you want to pay a little more, cst makes a good lift. What I dont like about fabtech is how it makes your front tires stick out so much wider than the rear. To me it looks kinda goofy - but thats my opinion and you may like that. I have a buddy at work that put a 6" RCD on his 02 Siera CC 4x4 8.1 & its a great looking truck! He has 10" rims, I think I'd go the 8.5" route - but again personal preference. Let us know what you get & how it effects your milage. GF7PE said he got better, but I knew he did already. Any others w/ our setup getting better MPG now??

GF7PE · October 9, 2004

whats wierd is a guy I know has the same truck with the RCD lift and the tires stick out just as much. I am gonna get some 5.5bs wheels for the front and 4.5's for the rear to make it look better

highchevy · October 9, 2004

I've got the 8" fabtech and I agree that the front track was widened about 5" total. Of course I realized this after the truck was lifted! Looking to buy a new truck this spring and want to do an 11" CST lift with 38" tires. I do however like the lift I have the double shock mounts up front and the tracktion bars in the rear and think it rides nice. I have had no real problems with the lift and think the only thing I want to do is to regear the axles to 4:56 or 4:88 it currently has 4:10's.