Datsun 620 4x4

[Clint760]

I am thinking of making my 78 620 into a 4x4 by using the axles from a toyota and possibly from Suzuki . I want to keep the original tranny and engine . Has any one ever heard of someone making a 620 a 4x4?   

[datzenmike]

Get a divorced T-100 transfer case and drive shafts from a 720 and weld it in. Early Toyota (pre 76) solid front axle. I got this far and gave up. 

 

[Clint760]

Thank you at least it's a start .

[datzenmike]

Easiest would be a 720 4x4 and swap the 620 body on. The frame in the above picture was a 2wd '82 720 long wheelbase so the body does fit. It had Ford F-150 leaf springs on all four corners. It weighed around 3,500 and I put a larger Z24 engine in it because I was stuck with 4.11s. A 4.875 diff would have been better with those 33s. .

[]2eDeYe]

Samurai axles are too narrow IMHO.

If I was to do another one I would use newer land cruiser axles with factory lockers.  

Saying that, I love my waggy front. It has the best turning radius and plenty of aftermarket support. 

 

My build thread. 

 

[nl320what]

Waggy axles are great, back in the 70's they would have factory optioned 620 4x4 conversions done using Jeep axles/xfr cases (Dana 20).

 

The early 80's Toyota 8" solid axles are 6 lug and the pumpkin 3rd members are swappable front to rear and have a big aftermarket following.

 

[Lockleaf]

I've long thought that a 720 tcase, clocked to the pass side might work really well with the wagoneer rear offset diff axle and matching front.

[Clint760]

I know it's going to take some welding any way I do it . I am also finding out the front suspention will also need to be changed . This is the second time the wagoneer came up in my search so I think your on to something .Thank you .

[]2eDeYe]

The front suspension will need to be completely fabricated. Special attention should be given to proper steering geometry. 

[datzenmike]

This.

 

I used the Toyota top spring with shackles and F150 leaves below that were re-arced to 9". Plum bob and lots of measuring front to back, back to front, side to side and diagonal to triangulate the axle. Steering was a 280zx power steering box with a diagonal tie rod to an upside down steering knuckle on the passenger side to remove any bump steer. Both wheels were tied together with the stock horizontal tie rod on the bottom. 

[Clint760]

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