TH700 TRANS NO FORWARD GEARS, REVERVE BURNS RUBBER ALL DAY

unfortunately your forward clutch has more than likely burned out,
If reverse works fine, that's your problem

I would but imagine that since it goes into reverse, the shift lever is connected to the transmission. Makes sense. But won't go into forward gears with the selector/shift lever. Your either very low on trans fluid or you've burned the clutch packs out from being low on trans fluid. Only makes sense.

check the shifter under the interior boot

Sounds like your transmission is going bad. If your transmission is slipping only in drive or forward gears, then it could be just that it is low on fluid, but when reverse starts to slip it usually means rebuild/replace transmission.

Good luck

internal trans failure

check ATF condition (burn , black coler ) most of same case means clutch for forward is damage try to replace torqu.covertor if not replace complete trans..

bent or broken reverse gear linkage, inside the trans.or broken sliding reverse gear.

sounds like a auto box fault to me,,if its doing nothing and wont rev,past,,2000rmp this is about all it should rev at when doing a "stall test" the gear box may be locked up if it is and you keep reving the guts out of you will burn out the gear box up,,,have you tryed jacking up the rear wheel of the car to see if its not the diff that locked up

It seems that the trans is slipping. The smell is from excess trans flood. If Trans is over filled, it can rupture seals and cause leaking that can get on the exhaust and burn.

Your vehicle should have the A4LD trans.Some of those small Bronco's had C-5....3 speed,lockup trans in them.If yours is indeed the O.Drive trans,4th gear in that trans is totally mechanical and hydraulic control.The only electricals in that year trans is lockup apply inside the torque convertor,and that happens after the 3-4 upshift.Later version DID have a solenoid for 4th gear.4th gear consists of the Forward clutch pack applied,and the front band,or O.D. band.This band is applied with a servo piston.It is a steel core piston with a pin and a rubber bonded covering with molded in lip seals.These servos are known for the rubber hardening,and no longer applying the band.Sometimes the band gets burnt to the point of no good,but installing a new piston is possible without removing the trans.Other than the servo piston,or without checking the valves in the valvebody,pretty much the trans would have to come out and be inspected.Good luck.j