Fitting 37's on a J20

[dadof3byz07]

If I put in a 3" body lift,and cut the fenders,could I fit 37's on my 82 J20?

[budojeepr]

If I put in a 3" body lift,and cut the fenders,could I fit 37's on my 82 J20?
I made cardboard cutouts at approx. 37" by drawing a circle with a pen tied to a piece of string 17.5" long. Jack up the rig by the axle (not the body), put the cutout center in the center of your hub, and start figuring. I ended up with 5" lift and soa, and cut the front fenders about 1" up.

[FSJK]

I don't think 37's are THAT hard to fit under. I have a 4" spring lift and my 35s fit fine, so with some trimming, which I'd hate to see, I'm sure it's doable...but I wouldn't...and I also wouldn't recommend a 3" body lift unless you reinforce every single mount.

[dadof3byz07]

I just don't want to have to buy a set of rims.My truck came with 2 full sets of 16.5x8 rims.I can get 37's to fit them,but not 33's or 35's.I've got 33's on it now,but they are dry rotted pretty bad.8 lug 15" wheels aren't a dime a dozen,so If I can make my wheels work,I have to.:(I'm on a VERY limited budget so I don't have many options.

[Lindel]

You could get some 16" wheels in 8 lugs, and with 33's, the price might be pretty close to 37's.

[fishtooter]

Hey i had a 72 j4000 truck with 38 on it and no lift the guy i bought the truck from had cut the fender flares all the way off and i never had any problems with them rubbing.

[raider50]

I am going to jump on this thread to ask my own question. Sorry, but my 77 j20 could also use some larger tires. It is basically a ranch truck, no serious wheeling. Nothing more than a little bit in the pasture. So how big of tires do you think i could fit under there?

[SirPaul64]

my build for my j20 i have a 4 inch lift 2 inch body with 1 inch shackles and i hope to run 37s i got for free. Hope it works as I am not planning on cutting the fenders

[AMC-J/20]

you have to lift your truck 1 inch for every 2 inches of tire size in crease, is the rule of thumb. . .

example:
30's to 36's = 3inch lift.

also with 8 lug hub's n wheels i'd suggest some nice 19.5's :thumbsup:
the swap over is a bit spendy but the long term saving's more then going to pay for it :D also if you wanna save some cash i like do snoop through E-bay Craig's list n local yards i can convert a truck for a lot less then the prices listed on the site, but the info on the site is very good !

19.5 Conversion:
http://www.ricksontruckwheels.com/

EDIT:
I have a few truck's rolling on 19.5's i can vouch for the long tread wear and Outstanding handling under load's and the fact that flats n blow outs never happen, I have many 19.5's rolling on the road and for several years. . .

Mike

[Tad]

Here are OZ2 37's on a JTruck.
SOA (about 6 3/4") and a 3" body lift.
So call it 10" of lift.
I would have (trashed this project) needed to cut marginally to wheel and cut severly to wheel what I wheel these days.

http://members.cox.net/fsjntechstuff/tirefitup.JPG