620 tire sizes

[bass]

whats the biggest diameter tire someone has put on a stock early 70's 620, i have the torsion arms cranked all the way up and 31x10.5r15 m/t's (30.5" diameter) do not fit on the front,

 

[Dawa]

bought the truck with 14s on it (195/75 tires = 25.5in diameter)

which isnt too tall but there was a few more inches of room left:

[Aibast]

I can only use 185 R14C type tyres. It's even marked in the registration certificate. So the men in blue can check that and give me a big fine if not to spec. So no other sizes are an option for me - thank the EU for that.

[datsunaholic]

Well, stock means not doing anything with the torsion bars. But even cranked all the way up, you won't get 31s under the front of a 620 unless you stick a body lift under it.

 

I run 205/75 R14s and they clear fine. I have had as much as 225/70 14s on a stock-height '74.

 

My '76 Longbed has 265/70 R16s under it, but it also has a dana-30 front axle and some pretty hefty leaf springs up front.

[bass]

i meant stock datsun suspension, im trying to use any size mud terrain that will fit, 28" diameter is as as small as any company makes in mud tires anyone fit a 28" tall tire on a 620 without bodylift?

[bass]

im trying to use 15x7" rims as well

[datzenmike]

As Doug said. I had 31s under but had a 4" body lift and still had to hammer the front of the cab by the wheel well in.

[datsunaholic]

I have 29" (LT235/75R15, 28.9") ones on my other 4X4, and the fenders had to be cut at the bottom, and THAT is with a solid front axle conversion that provides about 3" of lift. 28" will be very close. It'll fit the wheelwell with the torsions cranked but will probably hit the lower fender lips at turns.

[datsunaholic]

This is an idea of how much lift was needed to clear 29" tires. Due to articulation the fenders had to be clearanced at the lower corners of the wheelwell:

 

 

Since you're not doing 4WD live axle, articulation isn't an issue. But you still have to take full suspension compression into account.

[]2eDeYe]

Pretty sure this one had 31"s at the end...

 

http://community.rat..._+ryan +seattle

 

 

 

 

He cranked the torsion bars til he hit the upper bumpstops and pulled the fenders out.

[datsunaholic]

He also cut the bottoms off both fenders and hammered the holy hellout of the firewall/floorboard portion of the wheelwell. Notice in that pic, the lower fender fronts are already gone.. He got more radical later.