I've been looking around for a good small lift kit for my truck,a 2011 gas F250.
I would like to know the benfits of a radius arm kit like the Rancho RS6525 wich should give me a 2-1/2" front lift.This kit is a lot more expensive then most levelling kit using spacers on front coil springs;Is it worth the difference?
I'd also like to know if the ride on the Rancho kit will be better,should-I expect a longer suspension travel?
I am planning on using F350 blocks in the rear. To run 35X12.50 tires.Does it sound like a good set-up?Will I have warranty issues with such a set-up?
I wanted to send you a pm but I can't find the option.
I have a set of 4" Procomp rear axle lift blocks that I bought for my 2001 on craigslist that are only for the 2011/2012 trucks. Part#95-407sd. If you're interested, I'm sure we can work out a cheap price.
The Rancho RS6524 (4") and RS6525 (2.5") are NOT "complete" lift kits... it is simply a replacement radius arm kit that should be considered an "optional" component. Both kits require new front coil springs (where the actual lift occurs) and new shocks. The 4" lift kit requires a rear "Axle U-Bolt Kit" which includes an auxiliary spring (2), blocks (2), and u-bolts. In short, when you ADD all of the required components, these completed kits are expensive.
IMO, only those aftermarket radius arm kits that are "adjustable" add value to a lift kit. Those that are NOT adjustable are the same as the OEM radius arms and are only for looks, not function. Below are two examples of functional radius arm kits in the aftermarket.
I assume that the radius arms must be different then the original to accomodate longer coil spring resulting in 2-1/2" or 4 " lift depending on the kit.
Can you tell me the main difference between an adjustable radius arm kit like Icon compare to other "straight" aftermarket radius arm like Rancho or Procomp K4176.
The OEM and non-adjustable aftermarket radius arms use "cam bushings" to adjust the alignment of the front suspension. Aftermarket companies should provide you with the appropriate cam bushings as part of their lift kit. If they do not, then it is up to your local tire dealer to find the appropriate cam bushing for your application.
The adjustable radius arms have "heim joints" that replace the cam bushings. The heim joints can be adjusted for any application.
The Rancho RS6524 and RS6525 radius arms may have been designed with the applicable lift (2.5" or 4") in mind. They may or may not require cam bushings... you would have to contact Rancho to make this determination.
Do you think that it is worth?Let say does a 2-1/2" kit will give a better ride,more wheel travel in the front?
P.S: Kit is from Rancho
If I were you, I would install the 35" tires on your stock suspension. You should not have any clearance issues. Drive the truck for a while and see if you really want/need additional clearance. You have a new truck and the suspension components (coil springs) are in great condition. If later you then decide that you want/need additional clearance, start a new thread on FTE.
BTW, what IS the actual cost for everything needed for the Rancho 2.5" leveling kit?
David, you are right that some aftermarket companies like Icon, Eibach, Bilstein do offer "better than OEM" progressive coil springs but they come at a higher price. That is why I asked the OP the actual cost of the Rancho 2.5" leveling kit for a basis of comparison...
BTW, what IS the actual cost for everything needed for the Rancho 2.5" leveling kit?[/quote]
I've been looking around for a while and I finally got a price today;
the basic RS6525B kit is 1050$ canadian,does not include shocks and coil springs.I found out that it is very difficult to even get a quote in Quebec.I know retailers from the USA have way better prices,but most of them ship trough UPS and this is where we get caught,it can add up as high as 40 % broker fees with those guys...
Thanks for your wise advice,I think I'll go with tires first and see how it works and how it rides.
Jo, I didn't realize that you live in Canada. I know of two companies here in the US that offer competitve pricing on a host of aftermarket products that may be able to assist you in the future. See links below...