Hey Juan, you are right and thanks for the info.
I have converted an 80-series to standard crossover steering before so no worries in that department.
Clearance is definitely an issue with steering and panhard. That for me can all be worked out with lot's of measurements and planning. It is more of a concern with the coil buckets on the axle and also the coil mounts on the frame, due to width of the 70 axle. However and correct me if I am wrong, didn't the frame stay the same in 99 when Toyota went coil sprung front end? Wasn't it 2007 when they widened the front frame and that only for the v8 diesel? Did the 99+ 70 front axle change in width when Toyota went coils? I thought that also took place in 2007 with the wider front clip, not in 99. A lot if not all of the 70-series parts to do the coil conversion are still available from Toyota. It is just much cheaper for me to use 80-series stuff. If the actual coil springs became the main issue like I say I could easily fit coilovers, say a 10-12" King or Fox. I already have RuffStuff 9.5" & 12" coilover shock towers ready to go.
Any ways, just playing with ideas and I have not taken the time yet to start measuring the 80's here and comparing to my 70-series.
Cheers
Hello,
Yes, in 2007 both the front frame and the front axle were widened to house the newer V6/V8 engines. And yes, frame and axle width did not change between 1999 and 2007.
The differential carrier assembly is common to both the 70 and 80 Series. So are the suspension arms. Axle is 70 Series-specific.
Shock absorbers, Coils and panhard rods are the same as in pre-1999 models. Coils and springs changed in 2007.
This is the steering linkage. Notice how some parts are reversed when compared to pre-1999 models.
A while ago, when I replaced the steering damper, a first for me, I spent some time figuring the details out. The manual I had back then did not cover my truck, which confused me. I assumed Light Duty models steering applied, I was wrong. Eventually I got it and changed the stabilizer; it was difficult for me. Later I did the replacement on a pre-1999 model, and I found it easier, because all the mechanism was ahead of the front axle, not just part of it.
Hence the caution comments. Just sharing my experiences.
I have seen coil sprung conversions, but all of them seemed a bit crude to me. After seeing your work, I look forward to see yours.
Juan