2.5 drop w/ 275/60/15

[doc70sub]

When I drop my stock '70 Sub w/ 2.5 spindles, will the 275/60/15 on 15x8 rallys be a problem?
Thanks!
Doc

[gchemist]

I don't think it will be a problem with the 70's. The 73-80's are a problem due to the wider front path and the design of the fender. I have 245/60R15s with 2.5 spindals and stock springs which are a problem. Anytime the frontss weighs down due to dips in the roads the tire scraps the fender. I need to replace the stock springs with new ones or stiffers ones.

[70c10]

Spindles require disc brakes.

[doc70sub]

I'll be using the '73-up 2.5" drop spindles for the 1.25" rotors as I have already rebuilt the front suspension w/ polygraphite-bushed '75 disc brake components.
Doc

[kens67chevy]

when you converted your 70 to a 73 to87 front end did you put the complete steering system on the burban.

let me know

thanks ken

[doc70sub]

I used the '75 a-arms & spindles, installed new bushings & '75 spec tie rods, centerlink, etc. All I used of the existing '70 steering was the steering arm, although I've heard you just need to use the tie rod ends when doing the spindle swap.
Good luck!
Doc

[perrosinpata@aol.com]

Just completed installation of CEE lowering kit and 2.5 spindles with 73 front lower control arms and tierods. 70 6 lug differential. with 275 /60r15 all around 15x8 front 15x10 rear. the problem i had was rubbing on the driver side rear fender wall. Tried to install wheel spacers but to no avail. I ended up cutting about 3-4 " just in case with a sawsall.One thing i would have done was install cnothes ,because now it bottoms out.By the way it is a 1970 suburban

[chevymad]

I just lowered my truck 2.5" front, 3" rear, yesterday.. Used springs and shocks. I have 15x10's at all 4 corners with 275/60's. No rubbing at all. Even lock to lock. Here's a pic... just to show off of course!

[IMG]http://groups.msn.com/_Secure/0UQDqAucZkkKaqWY*NJ4VHr7euz32xEESAuTuN7NltQak6yYsnhyXQkdN2ScPeb03Piklz0A7BqZzCTukvzsjDAXpy!KEnHy*wlp EZhl7TRYUJxjxApZoQcjfu8kAkbRF/lowchevy0001.jpg?dc=4675426189109759435[/IMG]


One question of my own.. The new rear coils are quite a bit lighter duty than my old ones. I will still occasionaly need to use this truck as a truck.. towing a horse trailer or hauling stuff. What company makes a rear air bag helper kit?

[70c10]

Pics didn't work.

[chevymad]

Ya.. that seems to be an msn thing.. works on some sites not on others. Lets try it this way..

[doc70sub]

Offset of your 15x10s?
Looks good!!!
doc

[sbrban]

I've got 275/60/15's all around on my sub and have no problems with clearance with my airride(even with the bags dumped)

[doc70sub]

sbrban,
What size wheels are you running? Any pics?
Thanks!
doc

[chevymad]

If I remember correctly they're 4" back spacing.. but they may be 4 1/2. They fit perfectly with drums but now just barely hang outside the fender with the disc conversion.

[sbrban]

I'm running 15 x 8 ralleyes, There's a pic of my ride in the post "airride/swaybar" .

[perrosinpata@aol.com]

I replied early in the post and was curious if you plan on installing a cnotch? Well i am in the process and am having a little trouble . Brothers states that you might need to modify it. By the way it is a bolt on notch .

[72chevyLWB]

15X8 ralley's have a 5" bs with the 5 lug pattern, thats why they rubbed. They are set in too far. About every 15X10 has a 4" bs which is why they fit. A 6 bolt ralley also has a 4" bs. So if you leave the ralley's you will have a little rubbing, but shouldn't be too bad. Only on tight corners I would think. I had a 3" front drop with 275/60's before with 15X8 custom wheels which had the 4" bs with no rubbing ever.
Hope this helps